1036640720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1\times {\mathrm{997}}^1$

素因数の和:1368

約数の個数: 80

約数和(自身を含む): 2479247568

約数和(自身を除く): 1442606848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 317, 328, 410, 634, 656, 820, 997, 1268, 1585, 1640, 1994, 2536, 3170, 3280, 3988, 4985, 5072, 6340, 7976, 9970, 12680, 12997, 15952, 19940, 25360, 25994, 39880, 40877, 51988, 64985, 79760, 81754, 103976, 129970, 163508, 204385, 207952, 259940, 316049, 327016, 408770, 519880, 632098, 654032, 817540, 1039760, 1264196, 1580245, 1635080, 2528392, 3160490, 3270160, 5056784, 6320980, 12641960, 12958009, 25283920, 25916018, 51832036, 64790045, 103664072, 129580090, 207328144, 259160180, 518320360, 1036640720]

約数ペア:

[(1, 1036640720), (2, 518320360), (4, 259160180), (5, 207328144), (8, 129580090), (10, 103664072), (16, 64790045), (20, 51832036), (40, 25916018), (41, 25283920), (80, 12958009), (82, 12641960), (164, 6320980), (205, 5056784), (317, 3270160), (328, 3160490), (410, 2528392), (634, 1635080), (656, 1580245), (820, 1264196), (997, 1039760), (1268, 817540), (1585, 654032), (1640, 632098), (1994, 519880), (2536, 408770), (3170, 327016), (3280, 316049), (3988, 259940), (4985, 207952), (5072, 204385), (6340, 163508), (7976, 129970), (9970, 103976), (12680, 81754), (12997, 79760), (15952, 64985), (19940, 51988), (25360, 40877), (25994, 39880)]