280054940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{727}}^1$

素因数の和:867

約数の個数: 96

約数和(自身を含む): 686859264

約数和(自身を除く): 406804324

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 103, 110, 170, 187, 206, 220, 340, 374, 412, 515, 727, 748, 935, 1030, 1133, 1454, 1751, 1870, 2060, 2266, 2908, 3502, 3635, 3740, 4532, 5665, 7004, 7270, 7997, 8755, 11330, 12359, 14540, 15994, 17510, 19261, 22660, 24718, 31988, 35020, 38522, 39985, 49436, 61795, 74881, 77044, 79970, 96305, 123590, 135949, 149762, 159940, 192610, 247180, 271898, 299524, 374405, 385220, 543796, 679745, 748810, 823691, 1272977, 1359490, 1497620, 1647382, 2545954, 2718980, 3294764, 4118455, 5091908, 6364885, 8236910, 12729770, 14002747, 16473820, 25459540, 28005494, 56010988, 70013735, 140027470, 280054940]

約数ペア:

[(1, 280054940), (2, 140027470), (4, 70013735), (5, 56010988), (10, 28005494), (11, 25459540), (17, 16473820), (20, 14002747), (22, 12729770), (34, 8236910), (44, 6364885), (55, 5091908), (68, 4118455), (85, 3294764), (103, 2718980), (110, 2545954), (170, 1647382), (187, 1497620), (206, 1359490), (220, 1272977), (340, 823691), (374, 748810), (412, 679745), (515, 543796), (727, 385220), (748, 374405), (935, 299524), (1030, 271898), (1133, 247180), (1454, 192610), (1751, 159940), (1870, 149762), (2060, 135949), (2266, 123590), (2908, 96305), (3502, 79970), (3635, 77044), (3740, 74881), (4532, 61795), (5665, 49436), (7004, 39985), (7270, 38522), (7997, 35020), (8755, 31988), (11330, 24718), (12359, 22660), (14540, 19261), (15994, 17510)]