78820080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 160

約数和(自身を含む): 259269120

約数和(自身を除く): 180449040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 109, 115, 120, 131, 138, 184, 218, 230, 240, 262, 276, 327, 345, 368, 393, 436, 460, 524, 545, 552, 654, 655, 690, 786, 872, 920, 1048, 1090, 1104, 1308, 1310, 1380, 1572, 1635, 1744, 1840, 1965, 2096, 2180, 2507, 2616, 2620, 2760, 3013, 3144, 3270, 3930, 4360, 5014, 5232, 5240, 5520, 6026, 6288, 6540, 7521, 7860, 8720, 9039, 10028, 10480, 12052, 12535, 13080, 14279, 15042, 15065, 15720, 18078, 20056, 24104, 25070, 26160, 28558, 30084, 30130, 31440, 36156, 37605, 40112, 42837, 45195, 48208, 50140, 57116, 60168, 60260, 71395, 72312, 75210, 85674, 90390, 100280, 114232, 120336, 120520, 142790, 144624, 150420, 171348, 180780, 200560, 214185, 228464, 241040, 285580, 300840, 328417, 342696, 361560, 428370, 571160, 601680, 656834, 685392, 723120, 856740, 985251, 1142320, 1313668, 1642085, 1713480, 1970502, 2627336, 3284170, 3426960, 3941004, 4926255, 5254672, 6568340, 7882008, 9852510, 13136680, 15764016, 19705020, 26273360, 39410040, 78820080]

約数ペア:

[(1, 78820080), (2, 39410040), (3, 26273360), (4, 19705020), (5, 15764016), (6, 13136680), (8, 9852510), (10, 7882008), (12, 6568340), (15, 5254672), (16, 4926255), (20, 3941004), (23, 3426960), (24, 3284170), (30, 2627336), (40, 1970502), (46, 1713480), (48, 1642085), (60, 1313668), (69, 1142320), (80, 985251), (92, 856740), (109, 723120), (115, 685392), (120, 656834), (131, 601680), (138, 571160), (184, 428370), (218, 361560), (230, 342696), (240, 328417), (262, 300840), (276, 285580), (327, 241040), (345, 228464), (368, 214185), (393, 200560), (436, 180780), (460, 171348), (524, 150420), (545, 144624), (552, 142790), (654, 120520), (655, 120336), (690, 114232), (786, 100280), (872, 90390), (920, 85674), (1048, 75210), (1090, 72312), (1104, 71395), (1308, 60260), (1310, 60168), (1380, 57116), (1572, 50140), (1635, 48208), (1744, 45195), (1840, 42837), (1965, 40112), (2096, 37605), (2180, 36156), (2507, 31440), (2616, 30130), (2620, 30084), (2760, 28558), (3013, 26160), (3144, 25070), (3270, 24104), (3930, 20056), (4360, 18078), (5014, 15720), (5232, 15065), (5240, 15042), (5520, 14279), (6026, 13080), (6288, 12535), (6540, 12052), (7521, 10480), (7860, 10028), (8720, 9039)]