254607640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:725

約数の個数: 128

約数和(自身を含む): 702172800

約数和(自身を除く): 447565160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 89, 119, 136, 140, 170, 178, 238, 280, 340, 356, 445, 476, 595, 601, 623, 680, 712, 890, 952, 1190, 1202, 1246, 1513, 1780, 2380, 2404, 2492, 3005, 3026, 3115, 3560, 4207, 4760, 4808, 4984, 6010, 6052, 6230, 7565, 8414, 10217, 10591, 12020, 12104, 12460, 15130, 16828, 20434, 21035, 21182, 24040, 24920, 30260, 33656, 40868, 42070, 42364, 51085, 52955, 53489, 60520, 71519, 81736, 84140, 84728, 102170, 105910, 106978, 143038, 168280, 204340, 211820, 213956, 267445, 286076, 357595, 374423, 408680, 423640, 427912, 534890, 572152, 715190, 748846, 909313, 1069780, 1430380, 1497692, 1818626, 1872115, 2139560, 2860760, 2995384, 3637252, 3744230, 4546565, 6365191, 7274504, 7488460, 9093130, 12730382, 14976920, 18186260, 25460764, 31825955, 36372520, 50921528, 63651910, 127303820, 254607640]

約数ペア:

[(1, 254607640), (2, 127303820), (4, 63651910), (5, 50921528), (7, 36372520), (8, 31825955), (10, 25460764), (14, 18186260), (17, 14976920), (20, 12730382), (28, 9093130), (34, 7488460), (35, 7274504), (40, 6365191), (56, 4546565), (68, 3744230), (70, 3637252), (85, 2995384), (89, 2860760), (119, 2139560), (136, 1872115), (140, 1818626), (170, 1497692), (178, 1430380), (238, 1069780), (280, 909313), (340, 748846), (356, 715190), (445, 572152), (476, 534890), (595, 427912), (601, 423640), (623, 408680), (680, 374423), (712, 357595), (890, 286076), (952, 267445), (1190, 213956), (1202, 211820), (1246, 204340), (1513, 168280), (1780, 143038), (2380, 106978), (2404, 105910), (2492, 102170), (3005, 84728), (3026, 84140), (3115, 81736), (3560, 71519), (4207, 60520), (4760, 53489), (4808, 52955), (4984, 51085), (6010, 42364), (6052, 42070), (6230, 40868), (7565, 33656), (8414, 30260), (10217, 24920), (10591, 24040), (12020, 21182), (12104, 21035), (12460, 20434), (15130, 16828)]