281565180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2111}}^1$

素因数の和:2161

約数の個数: 192

約数和(自身を含む): 993484800

約数和(自身を除く): 711919620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 27, 30, 36, 38, 39, 45, 52, 54, 57, 60, 65, 76, 78, 90, 95, 108, 114, 117, 130, 135, 156, 171, 180, 190, 195, 228, 234, 247, 260, 270, 285, 342, 351, 380, 390, 468, 494, 513, 540, 570, 585, 684, 702, 741, 780, 855, 988, 1026, 1140, 1170, 1235, 1404, 1482, 1710, 1755, 2052, 2111, 2223, 2340, 2470, 2565, 2964, 3420, 3510, 3705, 4222, 4446, 4940, 5130, 6333, 6669, 7020, 7410, 8444, 8892, 10260, 10555, 11115, 12666, 13338, 14820, 18999, 21110, 22230, 25332, 26676, 27443, 31665, 33345, 37998, 40109, 42220, 44460, 54886, 56997, 63330, 66690, 75996, 80218, 82329, 94995, 109772, 113994, 120327, 126660, 133380, 137215, 160436, 164658, 189990, 200545, 227988, 240654, 246987, 274430, 284985, 329316, 360981, 379980, 401090, 411645, 481308, 493974, 521417, 548860, 569970, 601635, 721962, 740961, 802180, 823290, 987948, 1042834, 1082943, 1139940, 1203270, 1234935, 1443924, 1481922, 1564251, 1646580, 1804905, 2085668, 2165886, 2406540, 2469870, 2607085, 2963844, 3128502, 3609810, 3704805, 4331772, 4692753, 4939740, 5214170, 5414715, 6257004, 7219620, 7409610, 7821255, 9385506, 10428340, 10829430, 14078259, 14819220, 15642510, 18771012, 21658860, 23463765, 28156518, 31285020, 46927530, 56313036, 70391295, 93855060, 140782590, 281565180]

約数ペア:

[(1, 281565180), (2, 140782590), (3, 93855060), (4, 70391295), (5, 56313036), (6, 46927530), (9, 31285020), (10, 28156518), (12, 23463765), (13, 21658860), (15, 18771012), (18, 15642510), (19, 14819220), (20, 14078259), (26, 10829430), (27, 10428340), (30, 9385506), (36, 7821255), (38, 7409610), (39, 7219620), (45, 6257004), (52, 5414715), (54, 5214170), (57, 4939740), (60, 4692753), (65, 4331772), (76, 3704805), (78, 3609810), (90, 3128502), (95, 2963844), (108, 2607085), (114, 2469870), (117, 2406540), (130, 2165886), (135, 2085668), (156, 1804905), (171, 1646580), (180, 1564251), (190, 1481922), (195, 1443924), (228, 1234935), (234, 1203270), (247, 1139940), (260, 1082943), (270, 1042834), (285, 987948), (342, 823290), (351, 802180), (380, 740961), (390, 721962), (468, 601635), (494, 569970), (513, 548860), (540, 521417), (570, 493974), (585, 481308), (684, 411645), (702, 401090), (741, 379980), (780, 360981), (855, 329316), (988, 284985), (1026, 274430), (1140, 246987), (1170, 240654), (1235, 227988), (1404, 200545), (1482, 189990), (1710, 164658), (1755, 160436), (2052, 137215), (2111, 133380), (2223, 126660), (2340, 120327), (2470, 113994), (2565, 109772), (2964, 94995), (3420, 82329), (3510, 80218), (3705, 75996), (4222, 66690), (4446, 63330), (4940, 56997), (5130, 54886), (6333, 44460), (6669, 42220), (7020, 40109), (7410, 37998), (8444, 33345), (8892, 31665), (10260, 27443), (10555, 26676), (11115, 25332), (12666, 22230), (13338, 21110), (14820, 18999)]