1253980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1$

素因数の和:95

約数の個数: 72

約数和(自身を含む): 3320352

約数和(自身を除く): 2066372

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 53, 65, 70, 91, 106, 130, 140, 169, 182, 212, 260, 265, 338, 364, 371, 455, 530, 676, 689, 742, 845, 910, 1060, 1183, 1378, 1484, 1690, 1820, 1855, 2366, 2756, 3380, 3445, 3710, 4732, 4823, 5915, 6890, 7420, 8957, 9646, 11830, 13780, 17914, 19292, 23660, 24115, 35828, 44785, 48230, 62699, 89570, 96460, 125398, 179140, 250796, 313495, 626990, 1253980]

約数ペア:

[(1, 1253980), (2, 626990), (4, 313495), (5, 250796), (7, 179140), (10, 125398), (13, 96460), (14, 89570), (20, 62699), (26, 48230), (28, 44785), (35, 35828), (52, 24115), (53, 23660), (65, 19292), (70, 17914), (91, 13780), (106, 11830), (130, 9646), (140, 8957), (169, 7420), (182, 6890), (212, 5915), (260, 4823), (265, 4732), (338, 3710), (364, 3445), (371, 3380), (455, 2756), (530, 2366), (676, 1855), (689, 1820), (742, 1690), (845, 1484), (910, 1378), (1060, 1183)]