258334160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:721

約数の個数: 160

約数和(自身を含む): 740524032

約数和(自身を除く): 482189872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 368, 434, 460, 496, 560, 620, 644, 647, 713, 805, 868, 920, 1085, 1240, 1288, 1294, 1426, 1610, 1736, 1840, 2170, 2480, 2576, 2588, 2852, 3220, 3235, 3472, 3565, 4340, 4529, 4991, 5176, 5704, 6440, 6470, 7130, 8680, 9058, 9982, 10352, 11408, 12880, 12940, 14260, 14881, 17360, 18116, 19964, 20057, 22645, 24955, 25880, 28520, 29762, 36232, 39928, 40114, 45290, 49910, 51760, 57040, 59524, 72464, 74405, 79856, 80228, 90580, 99820, 100285, 104167, 119048, 140399, 148810, 160456, 181160, 199640, 200570, 208334, 238096, 280798, 297620, 320912, 362320, 399280, 401140, 416668, 461311, 520835, 561596, 595240, 701995, 802280, 833336, 922622, 1041670, 1123192, 1190480, 1403990, 1604560, 1666672, 1845244, 2083340, 2246384, 2306555, 2807980, 3229177, 3690488, 4166680, 4613110, 5615960, 6458354, 7380976, 8333360, 9226220, 11231920, 12916708, 16145885, 18452440, 25833416, 32291770, 36904880, 51666832, 64583540, 129167080, 258334160]

約数ペア:

[(1, 258334160), (2, 129167080), (4, 64583540), (5, 51666832), (7, 36904880), (8, 32291770), (10, 25833416), (14, 18452440), (16, 16145885), (20, 12916708), (23, 11231920), (28, 9226220), (31, 8333360), (35, 7380976), (40, 6458354), (46, 5615960), (56, 4613110), (62, 4166680), (70, 3690488), (80, 3229177), (92, 2807980), (112, 2306555), (115, 2246384), (124, 2083340), (140, 1845244), (155, 1666672), (161, 1604560), (184, 1403990), (217, 1190480), (230, 1123192), (248, 1041670), (280, 922622), (310, 833336), (322, 802280), (368, 701995), (434, 595240), (460, 561596), (496, 520835), (560, 461311), (620, 416668), (644, 401140), (647, 399280), (713, 362320), (805, 320912), (868, 297620), (920, 280798), (1085, 238096), (1240, 208334), (1288, 200570), (1294, 199640), (1426, 181160), (1610, 160456), (1736, 148810), (1840, 140399), (2170, 119048), (2480, 104167), (2576, 100285), (2588, 99820), (2852, 90580), (3220, 80228), (3235, 79856), (3472, 74405), (3565, 72464), (4340, 59524), (4529, 57040), (4991, 51760), (5176, 49910), (5704, 45290), (6440, 40114), (6470, 39928), (7130, 36232), (8680, 29762), (9058, 28520), (9982, 25880), (10352, 24955), (11408, 22645), (12880, 20057), (12940, 19964), (14260, 18116), (14881, 17360)]