281856510

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 240

約数和(自身を含む): 860919840

約数和(自身を除く): 579063330

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 29, 30, 39, 45, 54, 58, 65, 71, 78, 81, 87, 90, 117, 130, 135, 142, 145, 162, 169, 174, 195, 213, 234, 261, 270, 290, 338, 351, 355, 377, 390, 405, 426, 435, 507, 522, 585, 639, 702, 710, 754, 783, 810, 845, 870, 923, 1014, 1053, 1065, 1131, 1170, 1278, 1305, 1521, 1566, 1690, 1755, 1846, 1885, 1917, 2059, 2106, 2130, 2262, 2349, 2535, 2610, 2769, 3042, 3195, 3393, 3510, 3770, 3834, 3915, 4118, 4563, 4615, 4698, 4901, 5070, 5265, 5538, 5655, 5751, 6177, 6390, 6786, 7605, 7830, 8307, 9126, 9230, 9585, 9802, 10179, 10295, 10530, 11310, 11502, 11745, 11999, 12354, 13689, 13845, 14703, 15210, 16614, 16965, 18531, 19170, 20358, 20590, 22815, 23490, 23998, 24505, 24921, 26767, 27378, 27690, 28755, 29406, 30537, 30885, 33930, 35997, 37062, 41535, 44109, 45630, 49010, 49842, 50895, 53534, 55593, 57510, 59995, 61074, 61770, 68445, 71994, 73515, 74763, 80301, 83070, 88218, 92655, 101790, 107991, 111186, 119990, 124605, 132327, 133835, 136890, 147030, 149526, 152685, 160602, 166779, 179985, 185310, 215982, 220545, 240903, 249210, 264654, 267670, 277965, 305370, 323973, 333558, 347971, 359970, 373815, 396981, 401505, 441090, 481806, 539955, 555930, 647946, 661635, 695942, 722709, 747630, 793962, 803010, 833895, 971919, 1043913, 1079910, 1204515, 1323270, 1445418, 1619865, 1667790, 1739855, 1943838, 1984905, 2087826, 2168127, 2409030, 3131739, 3239730, 3479710, 3613545, 3969810, 4336254, 4859595, 5219565, 6263478, 7227090, 9395217, 9719190, 10439130, 10840635, 15658695, 18790434, 21681270, 28185651, 31317390, 46976085, 56371302, 93952170, 140928255, 281856510]

約数ペア:

[(1, 281856510), (2, 140928255), (3, 93952170), (5, 56371302), (6, 46976085), (9, 31317390), (10, 28185651), (13, 21681270), (15, 18790434), (18, 15658695), (26, 10840635), (27, 10439130), (29, 9719190), (30, 9395217), (39, 7227090), (45, 6263478), (54, 5219565), (58, 4859595), (65, 4336254), (71, 3969810), (78, 3613545), (81, 3479710), (87, 3239730), (90, 3131739), (117, 2409030), (130, 2168127), (135, 2087826), (142, 1984905), (145, 1943838), (162, 1739855), (169, 1667790), (174, 1619865), (195, 1445418), (213, 1323270), (234, 1204515), (261, 1079910), (270, 1043913), (290, 971919), (338, 833895), (351, 803010), (355, 793962), (377, 747630), (390, 722709), (405, 695942), (426, 661635), (435, 647946), (507, 555930), (522, 539955), (585, 481806), (639, 441090), (702, 401505), (710, 396981), (754, 373815), (783, 359970), (810, 347971), (845, 333558), (870, 323973), (923, 305370), (1014, 277965), (1053, 267670), (1065, 264654), (1131, 249210), (1170, 240903), (1278, 220545), (1305, 215982), (1521, 185310), (1566, 179985), (1690, 166779), (1755, 160602), (1846, 152685), (1885, 149526), (1917, 147030), (2059, 136890), (2106, 133835), (2130, 132327), (2262, 124605), (2349, 119990), (2535, 111186), (2610, 107991), (2769, 101790), (3042, 92655), (3195, 88218), (3393, 83070), (3510, 80301), (3770, 74763), (3834, 73515), (3915, 71994), (4118, 68445), (4563, 61770), (4615, 61074), (4698, 59995), (4901, 57510), (5070, 55593), (5265, 53534), (5538, 50895), (5655, 49842), (5751, 49010), (6177, 45630), (6390, 44109), (6786, 41535), (7605, 37062), (7830, 35997), (8307, 33930), (9126, 30885), (9230, 30537), (9585, 29406), (9802, 28755), (10179, 27690), (10295, 27378), (10530, 26767), (11310, 24921), (11502, 24505), (11745, 23998), (11999, 23490), (12354, 22815), (13689, 20590), (13845, 20358), (14703, 19170), (15210, 18531), (16614, 16965)]