258423360

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20707}}^1$

素因数の和:20740

約数の個数: 112

約数和(自身を含む): 883651776

約数和(自身を除く): 625228416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 12480, 20707, 41414, 62121, 82828, 103535, 124242, 165656, 207070, 248484, 269191, 310605, 331312, 414140, 496968, 538382, 621210, 662624, 807573, 828280, 993936, 1076764, 1242420, 1325248, 1345955, 1615146, 1656560, 1987872, 2153528, 2484840, 2691910, 3230292, 3313120, 3975744, 4037865, 4307056, 4969680, 5383820, 6460584, 6626240, 8075730, 8614112, 9939360, 10767640, 12921168, 16151460, 17228224, 19878720, 21535280, 25842336, 32302920, 43070560, 51684672, 64605840, 86141120, 129211680, 258423360]

約数ペア:

[(1, 258423360), (2, 129211680), (3, 86141120), (4, 64605840), (5, 51684672), (6, 43070560), (8, 32302920), (10, 25842336), (12, 21535280), (13, 19878720), (15, 17228224), (16, 16151460), (20, 12921168), (24, 10767640), (26, 9939360), (30, 8614112), (32, 8075730), (39, 6626240), (40, 6460584), (48, 5383820), (52, 4969680), (60, 4307056), (64, 4037865), (65, 3975744), (78, 3313120), (80, 3230292), (96, 2691910), (104, 2484840), (120, 2153528), (130, 1987872), (156, 1656560), (160, 1615146), (192, 1345955), (195, 1325248), (208, 1242420), (240, 1076764), (260, 993936), (312, 828280), (320, 807573), (390, 662624), (416, 621210), (480, 538382), (520, 496968), (624, 414140), (780, 331312), (832, 310605), (960, 269191), (1040, 248484), (1248, 207070), (1560, 165656), (2080, 124242), (2496, 103535), (3120, 82828), (4160, 62121), (6240, 41414), (12480, 20707)]