778773040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{857}}^1$

素因数の和:1214

約数の個数: 80

約数和(自身を含む): 1867817952

約数和(自身を除く): 1089044912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 307, 370, 592, 614, 740, 857, 1228, 1480, 1535, 1714, 2456, 2960, 3070, 3428, 4285, 4912, 6140, 6856, 8570, 11359, 12280, 13712, 17140, 22718, 24560, 31709, 34280, 45436, 56795, 63418, 68560, 90872, 113590, 126836, 158545, 181744, 227180, 253672, 263099, 317090, 454360, 507344, 526198, 634180, 908720, 1052396, 1268360, 1315495, 2104792, 2536720, 2630990, 4209584, 5261980, 9734663, 10523960, 19469326, 21047920, 38938652, 48673315, 77877304, 97346630, 155754608, 194693260, 389386520, 778773040]

約数ペア:

[(1, 778773040), (2, 389386520), (4, 194693260), (5, 155754608), (8, 97346630), (10, 77877304), (16, 48673315), (20, 38938652), (37, 21047920), (40, 19469326), (74, 10523960), (80, 9734663), (148, 5261980), (185, 4209584), (296, 2630990), (307, 2536720), (370, 2104792), (592, 1315495), (614, 1268360), (740, 1052396), (857, 908720), (1228, 634180), (1480, 526198), (1535, 507344), (1714, 454360), (2456, 317090), (2960, 263099), (3070, 253672), (3428, 227180), (4285, 181744), (4912, 158545), (6140, 126836), (6856, 113590), (8570, 90872), (11359, 68560), (12280, 63418), (13712, 56795), (17140, 45436), (22718, 34280), (24560, 31709)]