254640820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2551}}^1$

素因数の和:2621

約数の個数: 96

約数和(自身を含む): 658538496

約数和(自身を除く): 403897676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 713, 805, 868, 1085, 1426, 1610, 2170, 2551, 2852, 3220, 3565, 4340, 4991, 5102, 7130, 9982, 10204, 12755, 14260, 17857, 19964, 24955, 25510, 35714, 49910, 51020, 58673, 71428, 79081, 89285, 99820, 117346, 158162, 178570, 234692, 293365, 316324, 357140, 395405, 410711, 553567, 586730, 790810, 821422, 1107134, 1173460, 1581620, 1642844, 1818863, 2053555, 2214268, 2767835, 3637726, 4107110, 5535670, 7275452, 8214220, 9094315, 11071340, 12732041, 18188630, 25464082, 36377260, 50928164, 63660205, 127320410, 254640820]

約数ペア:

[(1, 254640820), (2, 127320410), (4, 63660205), (5, 50928164), (7, 36377260), (10, 25464082), (14, 18188630), (20, 12732041), (23, 11071340), (28, 9094315), (31, 8214220), (35, 7275452), (46, 5535670), (62, 4107110), (70, 3637726), (92, 2767835), (115, 2214268), (124, 2053555), (140, 1818863), (155, 1642844), (161, 1581620), (217, 1173460), (230, 1107134), (310, 821422), (322, 790810), (434, 586730), (460, 553567), (620, 410711), (644, 395405), (713, 357140), (805, 316324), (868, 293365), (1085, 234692), (1426, 178570), (1610, 158162), (2170, 117346), (2551, 99820), (2852, 89285), (3220, 79081), (3565, 71428), (4340, 58673), (4991, 51020), (5102, 49910), (7130, 35714), (9982, 25510), (10204, 24955), (12755, 19964), (14260, 17857)]