805815790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 1591591680

約数和(自身を除く): 785775890

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 257, 271, 445, 514, 542, 890, 1157, 1285, 1355, 2314, 2570, 2710, 3341, 3523, 5785, 6682, 7046, 11570, 16705, 17615, 22873, 24119, 33410, 35230, 45746, 48238, 69647, 114365, 120595, 139294, 228730, 241190, 297349, 313547, 348235, 594698, 627094, 696470, 905411, 1486745, 1567735, 1810822, 2973490, 3135470, 4527055, 6198583, 9054110, 12397166, 30992915, 61985830, 80581579, 161163158, 402907895, 805815790]

約数ペア:

[(1, 805815790), (2, 402907895), (5, 161163158), (10, 80581579), (13, 61985830), (26, 30992915), (65, 12397166), (89, 9054110), (130, 6198583), (178, 4527055), (257, 3135470), (271, 2973490), (445, 1810822), (514, 1567735), (542, 1486745), (890, 905411), (1157, 696470), (1285, 627094), (1355, 594698), (2314, 348235), (2570, 313547), (2710, 297349), (3341, 241190), (3523, 228730), (5785, 139294), (6682, 120595), (7046, 114365), (11570, 69647), (16705, 48238), (17615, 45746), (22873, 35230), (24119, 33410)]