380781990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{136481}}^1$

素因数の和:136525

約数の個数: 48

約数和(自身を含む): 1021977216

約数和(自身を除く): 641195226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 136481, 272962, 409443, 682405, 818886, 1228329, 1364810, 2047215, 2456658, 4094430, 4230911, 6141645, 8461822, 12283290, 12692733, 21154555, 25385466, 38078199, 42309110, 63463665, 76156398, 126927330, 190390995, 380781990]

約数ペア:

[(1, 380781990), (2, 190390995), (3, 126927330), (5, 76156398), (6, 63463665), (9, 42309110), (10, 38078199), (15, 25385466), (18, 21154555), (30, 12692733), (31, 12283290), (45, 8461822), (62, 6141645), (90, 4230911), (93, 4094430), (155, 2456658), (186, 2047215), (279, 1364810), (310, 1228329), (465, 818886), (558, 682405), (930, 409443), (1395, 272962), (2790, 136481)]