203988680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 550748160

約数和(自身を除く): 346759480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 71, 124, 140, 142, 155, 217, 248, 280, 284, 310, 331, 355, 434, 497, 568, 620, 662, 710, 868, 994, 1085, 1240, 1324, 1420, 1655, 1736, 1988, 2170, 2201, 2317, 2485, 2648, 2840, 3310, 3976, 4340, 4402, 4634, 4970, 6620, 8680, 8804, 9268, 9940, 10261, 11005, 11585, 13240, 15407, 17608, 18536, 19880, 20522, 22010, 23170, 23501, 30814, 41044, 44020, 46340, 47002, 51305, 61628, 71827, 77035, 82088, 88040, 92680, 94004, 102610, 117505, 123256, 143654, 154070, 164507, 188008, 205220, 235010, 287308, 308140, 329014, 359135, 410440, 470020, 574616, 616280, 658028, 718270, 728531, 822535, 940040, 1316056, 1436540, 1457062, 1645070, 2873080, 2914124, 3290140, 3642655, 5099717, 5828248, 6580280, 7285310, 10199434, 14570620, 20398868, 25498585, 29141240, 40797736, 50997170, 101994340, 203988680]

約数ペア:

[(1, 203988680), (2, 101994340), (4, 50997170), (5, 40797736), (7, 29141240), (8, 25498585), (10, 20398868), (14, 14570620), (20, 10199434), (28, 7285310), (31, 6580280), (35, 5828248), (40, 5099717), (56, 3642655), (62, 3290140), (70, 2914124), (71, 2873080), (124, 1645070), (140, 1457062), (142, 1436540), (155, 1316056), (217, 940040), (248, 822535), (280, 728531), (284, 718270), (310, 658028), (331, 616280), (355, 574616), (434, 470020), (497, 410440), (568, 359135), (620, 329014), (662, 308140), (710, 287308), (868, 235010), (994, 205220), (1085, 188008), (1240, 164507), (1324, 154070), (1420, 143654), (1655, 123256), (1736, 117505), (1988, 102610), (2170, 94004), (2201, 92680), (2317, 88040), (2485, 82088), (2648, 77035), (2840, 71827), (3310, 61628), (3976, 51305), (4340, 47002), (4402, 46340), (4634, 44020), (4970, 41044), (6620, 30814), (8680, 23501), (8804, 23170), (9268, 22010), (9940, 20522), (10261, 19880), (11005, 18536), (11585, 17608), (13240, 15407)]