638535924

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{9157}}^1$

素因数の和:9329

約数の個数: 72

約数和(自身を含む): 1750093800

約数和(自身を除く): 1111557876

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 149, 156, 234, 298, 447, 468, 596, 894, 1341, 1788, 1937, 2682, 3874, 5364, 5811, 7748, 9157, 11622, 17433, 18314, 23244, 27471, 34866, 36628, 54942, 69732, 82413, 109884, 119041, 164826, 238082, 329652, 357123, 476164, 714246, 1071369, 1364393, 1428492, 2142738, 2728786, 4093179, 4285476, 5457572, 8186358, 12279537, 16372716, 17737109, 24559074, 35474218, 49118148, 53211327, 70948436, 106422654, 159633981, 212845308, 319267962, 638535924]

約数ペア:

[(1, 638535924), (2, 319267962), (3, 212845308), (4, 159633981), (6, 106422654), (9, 70948436), (12, 53211327), (13, 49118148), (18, 35474218), (26, 24559074), (36, 17737109), (39, 16372716), (52, 12279537), (78, 8186358), (117, 5457572), (149, 4285476), (156, 4093179), (234, 2728786), (298, 2142738), (447, 1428492), (468, 1364393), (596, 1071369), (894, 714246), (1341, 476164), (1788, 357123), (1937, 329652), (2682, 238082), (3874, 164826), (5364, 119041), (5811, 109884), (7748, 82413), (9157, 69732), (11622, 54942), (17433, 36628), (18314, 34866), (23244, 27471)]