321251920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{4621}}^1$

素因数の和:4724

約数の個数: 80

約数和(自身を含む): 825304320

約数和(自身を除く): 504052400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 316, 395, 440, 632, 790, 869, 880, 1264, 1580, 1738, 3160, 3476, 4345, 4621, 6320, 6952, 8690, 9242, 13904, 17380, 18484, 23105, 34760, 36968, 46210, 50831, 69520, 73936, 92420, 101662, 184840, 203324, 254155, 365059, 369680, 406648, 508310, 730118, 813296, 1016620, 1460236, 1825295, 2033240, 2920472, 3650590, 4015649, 4066480, 5840944, 7301180, 8031298, 14602360, 16062596, 20078245, 29204720, 32125192, 40156490, 64250384, 80312980, 160625960, 321251920]

約数ペア:

[(1, 321251920), (2, 160625960), (4, 80312980), (5, 64250384), (8, 40156490), (10, 32125192), (11, 29204720), (16, 20078245), (20, 16062596), (22, 14602360), (40, 8031298), (44, 7301180), (55, 5840944), (79, 4066480), (80, 4015649), (88, 3650590), (110, 2920472), (158, 2033240), (176, 1825295), (220, 1460236), (316, 1016620), (395, 813296), (440, 730118), (632, 508310), (790, 406648), (869, 369680), (880, 365059), (1264, 254155), (1580, 203324), (1738, 184840), (3160, 101662), (3476, 92420), (4345, 73936), (4621, 69520), (6320, 50831), (6952, 46210), (8690, 36968), (9242, 34760), (13904, 23105), (17380, 18484)]