19438380

素因数分解:

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

素因数の和:118

約数の個数: 180

約数和(自身を含む): 66960432

約数和(自身を除く): 47522052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 71, 78, 81, 90, 108, 117, 130, 135, 142, 156, 162, 169, 180, 195, 213, 234, 260, 270, 284, 324, 338, 351, 355, 390, 405, 426, 468, 507, 540, 585, 639, 676, 702, 710, 780, 810, 845, 852, 923, 1014, 1053, 1065, 1170, 1278, 1404, 1420, 1521, 1620, 1690, 1755, 1846, 1917, 2028, 2106, 2130, 2340, 2535, 2556, 2769, 3042, 3195, 3380, 3510, 3692, 3834, 4212, 4260, 4563, 4615, 5070, 5265, 5538, 5751, 6084, 6390, 7020, 7605, 7668, 8307, 9126, 9230, 9585, 10140, 10530, 11076, 11502, 11999, 12780, 13689, 13845, 15210, 16614, 18252, 18460, 19170, 21060, 22815, 23004, 23998, 24921, 27378, 27690, 28755, 30420, 33228, 35997, 38340, 41535, 45630, 47996, 49842, 54756, 55380, 57510, 59995, 68445, 71994, 74763, 83070, 91260, 99684, 107991, 115020, 119990, 124605, 136890, 143988, 149526, 166140, 179985, 215982, 239980, 249210, 273780, 299052, 323973, 359970, 373815, 431964, 498420, 539955, 647946, 719940, 747630, 971919, 1079910, 1295892, 1495260, 1619865, 1943838, 2159820, 3239730, 3887676, 4859595, 6479460, 9719190, 19438380]

約数ペア:

[(1, 19438380), (2, 9719190), (3, 6479460), (4, 4859595), (5, 3887676), (6, 3239730), (9, 2159820), (10, 1943838), (12, 1619865), (13, 1495260), (15, 1295892), (18, 1079910), (20, 971919), (26, 747630), (27, 719940), (30, 647946), (36, 539955), (39, 498420), (45, 431964), (52, 373815), (54, 359970), (60, 323973), (65, 299052), (71, 273780), (78, 249210), (81, 239980), (90, 215982), (108, 179985), (117, 166140), (130, 149526), (135, 143988), (142, 136890), (156, 124605), (162, 119990), (169, 115020), (180, 107991), (195, 99684), (213, 91260), (234, 83070), (260, 74763), (270, 71994), (284, 68445), (324, 59995), (338, 57510), (351, 55380), (355, 54756), (390, 49842), (405, 47996), (426, 45630), (468, 41535), (507, 38340), (540, 35997), (585, 33228), (639, 30420), (676, 28755), (702, 27690), (710, 27378), (780, 24921), (810, 23998), (845, 23004), (852, 22815), (923, 21060), (1014, 19170), (1053, 18460), (1065, 18252), (1170, 16614), (1278, 15210), (1404, 13845), (1420, 13689), (1521, 12780), (1620, 11999), (1690, 11502), (1755, 11076), (1846, 10530), (1917, 10140), (2028, 9585), (2106, 9230), (2130, 9126), (2340, 8307), (2535, 7668), (2556, 7605), (2769, 7020), (3042, 6390), (3195, 6084), (3380, 5751), (3510, 5538), (3692, 5265), (3834, 5070), (4212, 4615), (4260, 4563)]