1978860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 6209280

約数和(自身を除く): 4230420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 59, 60, 65, 78, 86, 118, 129, 130, 156, 172, 177, 195, 215, 236, 258, 260, 295, 354, 390, 430, 516, 559, 590, 645, 708, 767, 780, 860, 885, 1118, 1180, 1290, 1534, 1677, 1770, 2236, 2301, 2537, 2580, 2795, 3068, 3354, 3540, 3835, 4602, 5074, 5590, 6708, 7611, 7670, 8385, 9204, 10148, 11180, 11505, 12685, 15222, 15340, 16770, 23010, 25370, 30444, 32981, 33540, 38055, 46020, 50740, 65962, 76110, 98943, 131924, 152220, 164905, 197886, 329810, 395772, 494715, 659620, 989430, 1978860]

約数ペア:

[(1, 1978860), (2, 989430), (3, 659620), (4, 494715), (5, 395772), (6, 329810), (10, 197886), (12, 164905), (13, 152220), (15, 131924), (20, 98943), (26, 76110), (30, 65962), (39, 50740), (43, 46020), (52, 38055), (59, 33540), (60, 32981), (65, 30444), (78, 25370), (86, 23010), (118, 16770), (129, 15340), (130, 15222), (156, 12685), (172, 11505), (177, 11180), (195, 10148), (215, 9204), (236, 8385), (258, 7670), (260, 7611), (295, 6708), (354, 5590), (390, 5074), (430, 4602), (516, 3835), (559, 3540), (590, 3354), (645, 3068), (708, 2795), (767, 2580), (780, 2537), (860, 2301), (885, 2236), (1118, 1770), (1180, 1677), (1290, 1534)]