281999475

素因数分解:

$3^4\times 5^2\times {\mathrm{157}}^1\times {\mathrm{887}}^1$

素因数の和:1066

約数の個数: 60

約数和(自身を含む): 526280304

約数和(自身を除く): 244280829

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 157, 225, 405, 471, 675, 785, 887, 1413, 2025, 2355, 2661, 3925, 4239, 4435, 7065, 7983, 11775, 12717, 13305, 21195, 22175, 23949, 35325, 39915, 63585, 66525, 71847, 105975, 119745, 139259, 199575, 317925, 359235, 417777, 598725, 696295, 1253331, 1796175, 2088885, 3481475, 3759993, 6266655, 10444425, 11279979, 18799965, 31333275, 56399895, 93999825, 281999475]

約数ペア:

[(1, 281999475), (3, 93999825), (5, 56399895), (9, 31333275), (15, 18799965), (25, 11279979), (27, 10444425), (45, 6266655), (75, 3759993), (81, 3481475), (135, 2088885), (157, 1796175), (225, 1253331), (405, 696295), (471, 598725), (675, 417777), (785, 359235), (887, 317925), (1413, 199575), (2025, 139259), (2355, 119745), (2661, 105975), (3925, 71847), (4239, 66525), (4435, 63585), (7065, 39915), (7983, 35325), (11775, 23949), (12717, 22175), (13305, 21195)]