2445840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 8511360

約数和(自身を除く): 6065520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 79, 80, 86, 90, 120, 129, 144, 158, 172, 180, 215, 237, 240, 258, 316, 344, 360, 387, 395, 430, 474, 516, 632, 645, 688, 711, 720, 774, 790, 860, 948, 1032, 1185, 1264, 1290, 1422, 1548, 1580, 1720, 1896, 1935, 2064, 2370, 2580, 2844, 3096, 3160, 3397, 3440, 3555, 3792, 3870, 4740, 5160, 5688, 6192, 6320, 6794, 7110, 7740, 9480, 10191, 10320, 11376, 13588, 14220, 15480, 16985, 18960, 20382, 27176, 28440, 30573, 30960, 33970, 40764, 50955, 54352, 56880, 61146, 67940, 81528, 101910, 122292, 135880, 152865, 163056, 203820, 244584, 271760, 305730, 407640, 489168, 611460, 815280, 1222920, 2445840]

約数ペア:

[(1, 2445840), (2, 1222920), (3, 815280), (4, 611460), (5, 489168), (6, 407640), (8, 305730), (9, 271760), (10, 244584), (12, 203820), (15, 163056), (16, 152865), (18, 135880), (20, 122292), (24, 101910), (30, 81528), (36, 67940), (40, 61146), (43, 56880), (45, 54352), (48, 50955), (60, 40764), (72, 33970), (79, 30960), (80, 30573), (86, 28440), (90, 27176), (120, 20382), (129, 18960), (144, 16985), (158, 15480), (172, 14220), (180, 13588), (215, 11376), (237, 10320), (240, 10191), (258, 9480), (316, 7740), (344, 7110), (360, 6794), (387, 6320), (395, 6192), (430, 5688), (474, 5160), (516, 4740), (632, 3870), (645, 3792), (688, 3555), (711, 3440), (720, 3397), (774, 3160), (790, 3096), (860, 2844), (948, 2580), (1032, 2370), (1185, 2064), (1264, 1935), (1290, 1896), (1422, 1720), (1548, 1580)]