123802840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:905

約数の個数: 128

約数和(自身を含む): 348364800

約数和(自身を除く): 224561960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 136, 140, 155, 170, 217, 238, 248, 280, 310, 340, 434, 476, 527, 595, 620, 680, 839, 868, 952, 1054, 1085, 1190, 1240, 1678, 1736, 2108, 2170, 2380, 2635, 3356, 3689, 4195, 4216, 4340, 4760, 5270, 5873, 6712, 7378, 8390, 8680, 10540, 11746, 14263, 14756, 16780, 18445, 21080, 23492, 26009, 28526, 29365, 29512, 33560, 36890, 46984, 52018, 57052, 58730, 71315, 73780, 99841, 104036, 114104, 117460, 130045, 142630, 147560, 182063, 199682, 208072, 234920, 260090, 285260, 364126, 399364, 442153, 499205, 520180, 570520, 728252, 798728, 884306, 910315, 998410, 1040360, 1456504, 1768612, 1820630, 1996820, 2210765, 3095071, 3537224, 3641260, 3993640, 4421530, 6190142, 7282520, 8843060, 12380284, 15475355, 17686120, 24760568, 30950710, 61901420, 123802840]

約数ペア:

[(1, 123802840), (2, 61901420), (4, 30950710), (5, 24760568), (7, 17686120), (8, 15475355), (10, 12380284), (14, 8843060), (17, 7282520), (20, 6190142), (28, 4421530), (31, 3993640), (34, 3641260), (35, 3537224), (40, 3095071), (56, 2210765), (62, 1996820), (68, 1820630), (70, 1768612), (85, 1456504), (119, 1040360), (124, 998410), (136, 910315), (140, 884306), (155, 798728), (170, 728252), (217, 570520), (238, 520180), (248, 499205), (280, 442153), (310, 399364), (340, 364126), (434, 285260), (476, 260090), (527, 234920), (595, 208072), (620, 199682), (680, 182063), (839, 147560), (868, 142630), (952, 130045), (1054, 117460), (1085, 114104), (1190, 104036), (1240, 99841), (1678, 73780), (1736, 71315), (2108, 58730), (2170, 57052), (2380, 52018), (2635, 46984), (3356, 36890), (3689, 33560), (4195, 29512), (4216, 29365), (4340, 28526), (4760, 26009), (5270, 23492), (5873, 21080), (6712, 18445), (7378, 16780), (8390, 14756), (8680, 14263), (10540, 11746)]