28322920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 39717080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 152, 166, 190, 332, 380, 415, 449, 664, 760, 830, 898, 1577, 1660, 1796, 2245, 3154, 3320, 3592, 4490, 6308, 7885, 8531, 8980, 12616, 15770, 17062, 17960, 31540, 34124, 37267, 42655, 63080, 68248, 74534, 85310, 149068, 170620, 186335, 298136, 341240, 372670, 708073, 745340, 1416146, 1490680, 2832292, 3540365, 5664584, 7080730, 14161460, 28322920]

約数ペア:

[(1, 28322920), (2, 14161460), (4, 7080730), (5, 5664584), (8, 3540365), (10, 2832292), (19, 1490680), (20, 1416146), (38, 745340), (40, 708073), (76, 372670), (83, 341240), (95, 298136), (152, 186335), (166, 170620), (190, 149068), (332, 85310), (380, 74534), (415, 68248), (449, 63080), (664, 42655), (760, 37267), (830, 34124), (898, 31540), (1577, 17960), (1660, 17062), (1796, 15770), (2245, 12616), (3154, 8980), (3320, 8531), (3592, 7885), (4490, 6308)]