290985240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26647}}^1$

素因数の和:26681

約数の個数: 128

約数和(自身を含む): 1074447360

約数和(自身を除く): 783462120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 26647, 53294, 79941, 106588, 133235, 159882, 186529, 213176, 266470, 319764, 346411, 373058, 399705, 532940, 559587, 639528, 692822, 746116, 799410, 932645, 1039233, 1065880, 1119174, 1385644, 1492232, 1598820, 1732055, 1865290, 2078466, 2238348, 2424877, 2771288, 2797935, 3197640, 3464110, 3730580, 4156932, 4476696, 4849754, 5196165, 5595870, 6928220, 7274631, 7461160, 8313864, 9699508, 10392330, 11191740, 12124385, 13856440, 14549262, 19399016, 20784660, 22383480, 24248770, 29098524, 36373155, 41569320, 48497540, 58197048, 72746310, 96995080, 145492620, 290985240]

約数ペア:

[(1, 290985240), (2, 145492620), (3, 96995080), (4, 72746310), (5, 58197048), (6, 48497540), (7, 41569320), (8, 36373155), (10, 29098524), (12, 24248770), (13, 22383480), (14, 20784660), (15, 19399016), (20, 14549262), (21, 13856440), (24, 12124385), (26, 11191740), (28, 10392330), (30, 9699508), (35, 8313864), (39, 7461160), (40, 7274631), (42, 6928220), (52, 5595870), (56, 5196165), (60, 4849754), (65, 4476696), (70, 4156932), (78, 3730580), (84, 3464110), (91, 3197640), (104, 2797935), (105, 2771288), (120, 2424877), (130, 2238348), (140, 2078466), (156, 1865290), (168, 1732055), (182, 1598820), (195, 1492232), (210, 1385644), (260, 1119174), (273, 1065880), (280, 1039233), (312, 932645), (364, 799410), (390, 746116), (420, 692822), (455, 639528), (520, 559587), (546, 532940), (728, 399705), (780, 373058), (840, 346411), (910, 319764), (1092, 266470), (1365, 213176), (1560, 186529), (1820, 159882), (2184, 133235), (2730, 106588), (3640, 79941), (5460, 53294), (10920, 26647)]