257031540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:750

約数の個数: 144

約数和(自身を含む): 817130496

約数和(自身を除く): 560098956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 73, 90, 93, 124, 146, 155, 180, 186, 219, 279, 292, 310, 365, 372, 438, 465, 558, 620, 631, 657, 730, 876, 930, 1095, 1116, 1262, 1314, 1395, 1460, 1860, 1893, 2190, 2263, 2524, 2628, 2790, 3155, 3285, 3786, 4380, 4526, 5580, 5679, 6310, 6570, 6789, 7572, 9052, 9465, 11315, 11358, 12620, 13140, 13578, 18930, 19561, 20367, 22630, 22716, 27156, 28395, 33945, 37860, 39122, 40734, 45260, 46063, 56790, 58683, 67890, 78244, 81468, 92126, 97805, 101835, 113580, 117366, 135780, 138189, 176049, 184252, 195610, 203670, 230315, 234732, 276378, 293415, 352098, 391220, 407340, 414567, 460630, 552756, 586830, 690945, 704196, 829134, 880245, 921260, 1173660, 1381890, 1427953, 1658268, 1760490, 2072835, 2763780, 2855906, 3520980, 4145670, 4283859, 5711812, 7139765, 8291340, 8567718, 12851577, 14279530, 17135436, 21419295, 25703154, 28559060, 42838590, 51406308, 64257885, 85677180, 128515770, 257031540]

約数ペア:

[(1, 257031540), (2, 128515770), (3, 85677180), (4, 64257885), (5, 51406308), (6, 42838590), (9, 28559060), (10, 25703154), (12, 21419295), (15, 17135436), (18, 14279530), (20, 12851577), (30, 8567718), (31, 8291340), (36, 7139765), (45, 5711812), (60, 4283859), (62, 4145670), (73, 3520980), (90, 2855906), (93, 2763780), (124, 2072835), (146, 1760490), (155, 1658268), (180, 1427953), (186, 1381890), (219, 1173660), (279, 921260), (292, 880245), (310, 829134), (365, 704196), (372, 690945), (438, 586830), (465, 552756), (558, 460630), (620, 414567), (631, 407340), (657, 391220), (730, 352098), (876, 293415), (930, 276378), (1095, 234732), (1116, 230315), (1262, 203670), (1314, 195610), (1395, 184252), (1460, 176049), (1860, 138189), (1893, 135780), (2190, 117366), (2263, 113580), (2524, 101835), (2628, 97805), (2790, 92126), (3155, 81468), (3285, 78244), (3786, 67890), (4380, 58683), (4526, 56790), (5580, 46063), (5679, 45260), (6310, 40734), (6570, 39122), (6789, 37860), (7572, 33945), (9052, 28395), (9465, 27156), (11315, 22716), (11358, 22630), (12620, 20367), (13140, 19561), (13578, 18930)]