254198140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1583}}^1$

素因数の和:1667

約数の個数: 96

約数和(自身を含む): 647184384

約数和(自身を除く): 392986244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 37, 62, 70, 74, 124, 140, 148, 155, 185, 217, 259, 310, 370, 434, 518, 620, 740, 868, 1036, 1085, 1147, 1295, 1583, 2170, 2294, 2590, 3166, 4340, 4588, 5180, 5735, 6332, 7915, 8029, 11081, 11470, 15830, 16058, 22162, 22940, 31660, 32116, 40145, 44324, 49073, 55405, 58571, 80290, 98146, 110810, 117142, 160580, 196292, 221620, 234284, 245365, 292855, 343511, 409997, 490730, 585710, 687022, 819994, 981460, 1171420, 1374044, 1639988, 1717555, 1815701, 2049985, 3435110, 3631402, 4099970, 6870220, 7262804, 8199940, 9078505, 12709907, 18157010, 25419814, 36314020, 50839628, 63549535, 127099070, 254198140]

約数ペア:

[(1, 254198140), (2, 127099070), (4, 63549535), (5, 50839628), (7, 36314020), (10, 25419814), (14, 18157010), (20, 12709907), (28, 9078505), (31, 8199940), (35, 7262804), (37, 6870220), (62, 4099970), (70, 3631402), (74, 3435110), (124, 2049985), (140, 1815701), (148, 1717555), (155, 1639988), (185, 1374044), (217, 1171420), (259, 981460), (310, 819994), (370, 687022), (434, 585710), (518, 490730), (620, 409997), (740, 343511), (868, 292855), (1036, 245365), (1085, 234284), (1147, 221620), (1295, 196292), (1583, 160580), (2170, 117142), (2294, 110810), (2590, 98146), (3166, 80290), (4340, 58571), (4588, 55405), (5180, 49073), (5735, 44324), (6332, 40145), (7915, 32116), (8029, 31660), (11081, 22940), (11470, 22162), (15830, 16058)]