256317240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{883}}^1$

素因数の和:997

約数の個数: 128

約数和(自身を含む): 801964800

約数和(自身を除く): 545647560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 59, 60, 82, 118, 120, 123, 164, 177, 205, 236, 246, 295, 328, 354, 410, 472, 492, 590, 615, 708, 820, 883, 885, 984, 1180, 1230, 1416, 1640, 1766, 1770, 2360, 2419, 2460, 2649, 3532, 3540, 4415, 4838, 4920, 5298, 7064, 7080, 7257, 8830, 9676, 10596, 12095, 13245, 14514, 17660, 19352, 21192, 24190, 26490, 29028, 35320, 36203, 36285, 48380, 52097, 52980, 58056, 72406, 72570, 96760, 104194, 105960, 108609, 144812, 145140, 156291, 181015, 208388, 217218, 260485, 289624, 290280, 312582, 362030, 416776, 434436, 520970, 543045, 625164, 724060, 781455, 868872, 1041940, 1086090, 1250328, 1448120, 1562910, 2083880, 2135977, 2172180, 3125820, 4271954, 4344360, 6251640, 6407931, 8543908, 10679885, 12815862, 17087816, 21359770, 25631724, 32039655, 42719540, 51263448, 64079310, 85439080, 128158620, 256317240]

約数ペア:

[(1, 256317240), (2, 128158620), (3, 85439080), (4, 64079310), (5, 51263448), (6, 42719540), (8, 32039655), (10, 25631724), (12, 21359770), (15, 17087816), (20, 12815862), (24, 10679885), (30, 8543908), (40, 6407931), (41, 6251640), (59, 4344360), (60, 4271954), (82, 3125820), (118, 2172180), (120, 2135977), (123, 2083880), (164, 1562910), (177, 1448120), (205, 1250328), (236, 1086090), (246, 1041940), (295, 868872), (328, 781455), (354, 724060), (410, 625164), (472, 543045), (492, 520970), (590, 434436), (615, 416776), (708, 362030), (820, 312582), (883, 290280), (885, 289624), (984, 260485), (1180, 217218), (1230, 208388), (1416, 181015), (1640, 156291), (1766, 145140), (1770, 144812), (2360, 108609), (2419, 105960), (2460, 104194), (2649, 96760), (3532, 72570), (3540, 72406), (4415, 58056), (4838, 52980), (4920, 52097), (5298, 48380), (7064, 36285), (7080, 36203), (7257, 35320), (8830, 29028), (9676, 26490), (10596, 24190), (12095, 21192), (13245, 19352), (14514, 17660)]