215687745

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 128

約数和(自身を含む): 479431680

約数和(自身を除く): 263743935

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 97, 105, 117, 135, 181, 189, 195, 273, 291, 315, 351, 455, 485, 543, 585, 679, 819, 873, 905, 945, 1261, 1267, 1365, 1455, 1629, 1755, 2037, 2353, 2457, 2619, 2715, 3395, 3783, 3801, 4095, 4365, 4887, 6111, 6305, 6335, 7059, 8145, 8827, 10185, 11349, 11403, 11765, 12285, 13095, 16471, 17557, 18333, 18915, 19005, 21177, 24435, 26481, 30555, 34047, 34209, 35295, 44135, 49413, 52671, 56745, 57015, 63531, 79443, 82355, 87785, 91665, 105885, 122899, 132405, 148239, 158013, 170235, 171045, 228241, 238329, 247065, 263355, 317655, 368697, 397215, 444717, 474039, 614495, 684723, 741195, 790065, 1106091, 1141205, 1191645, 1597687, 1843485, 2054169, 2223585, 2370195, 3318273, 3423615, 4793061, 5530455, 6162507, 7988435, 10270845, 14379183, 16591365, 23965305, 30812535, 43137549, 71895915, 215687745]

約数ペア:

[(1, 215687745), (3, 71895915), (5, 43137549), (7, 30812535), (9, 23965305), (13, 16591365), (15, 14379183), (21, 10270845), (27, 7988435), (35, 6162507), (39, 5530455), (45, 4793061), (63, 3423615), (65, 3318273), (91, 2370195), (97, 2223585), (105, 2054169), (117, 1843485), (135, 1597687), (181, 1191645), (189, 1141205), (195, 1106091), (273, 790065), (291, 741195), (315, 684723), (351, 614495), (455, 474039), (485, 444717), (543, 397215), (585, 368697), (679, 317655), (819, 263355), (873, 247065), (905, 238329), (945, 228241), (1261, 171045), (1267, 170235), (1365, 158013), (1455, 148239), (1629, 132405), (1755, 122899), (2037, 105885), (2353, 91665), (2457, 87785), (2619, 82355), (2715, 79443), (3395, 63531), (3783, 57015), (3801, 56745), (4095, 52671), (4365, 49413), (4887, 44135), (6111, 35295), (6305, 34209), (6335, 34047), (7059, 30555), (8145, 26481), (8827, 24435), (10185, 21177), (11349, 19005), (11403, 18915), (11765, 18333), (12285, 17557), (13095, 16471)]