245915560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 128

約数和(自身を含む): 632448000

約数和(自身を除く): 386532440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 149, 155, 220, 242, 248, 298, 310, 341, 440, 484, 596, 605, 620, 682, 745, 968, 1192, 1210, 1240, 1331, 1364, 1490, 1639, 1705, 2420, 2662, 2728, 2980, 3278, 3410, 3751, 4619, 4840, 5324, 5960, 6556, 6655, 6820, 7502, 8195, 9238, 10648, 13112, 13310, 13640, 15004, 16390, 18029, 18476, 18755, 23095, 26620, 30008, 32780, 36058, 36952, 37510, 41261, 46190, 50809, 53240, 65560, 72116, 75020, 82522, 90145, 92380, 101618, 144232, 150040, 165044, 180290, 184760, 198319, 203236, 206305, 254045, 330088, 360580, 396638, 406472, 412610, 508090, 558899, 721160, 793276, 825220, 991595, 1016180, 1117798, 1586552, 1650440, 1983190, 2032360, 2235596, 2794495, 3966380, 4471192, 5588990, 6147889, 7932760, 11177980, 12295778, 22355960, 24591556, 30739445, 49183112, 61478890, 122957780, 245915560]

約数ペア:

[(1, 245915560), (2, 122957780), (4, 61478890), (5, 49183112), (8, 30739445), (10, 24591556), (11, 22355960), (20, 12295778), (22, 11177980), (31, 7932760), (40, 6147889), (44, 5588990), (55, 4471192), (62, 3966380), (88, 2794495), (110, 2235596), (121, 2032360), (124, 1983190), (149, 1650440), (155, 1586552), (220, 1117798), (242, 1016180), (248, 991595), (298, 825220), (310, 793276), (341, 721160), (440, 558899), (484, 508090), (596, 412610), (605, 406472), (620, 396638), (682, 360580), (745, 330088), (968, 254045), (1192, 206305), (1210, 203236), (1240, 198319), (1331, 184760), (1364, 180290), (1490, 165044), (1639, 150040), (1705, 144232), (2420, 101618), (2662, 92380), (2728, 90145), (2980, 82522), (3278, 75020), (3410, 72116), (3751, 65560), (4619, 53240), (4840, 50809), (5324, 46190), (5960, 41261), (6556, 37510), (6655, 36952), (6820, 36058), (7502, 32780), (8195, 30008), (9238, 26620), (10648, 23095), (13112, 18755), (13310, 18476), (13640, 18029), (15004, 16390)]