1385704240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{5099}}^1$

素因数の和:5234

約数の個数: 80

約数和(自身を含む): 3339072000

約数和(自身を除く): 1953367760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 79, 80, 86, 158, 172, 215, 316, 344, 395, 430, 632, 688, 790, 860, 1264, 1580, 1720, 3160, 3397, 3440, 5099, 6320, 6794, 10198, 13588, 16985, 20396, 25495, 27176, 33970, 40792, 50990, 54352, 67940, 81584, 101980, 135880, 203960, 219257, 271760, 402821, 407920, 438514, 805642, 877028, 1096285, 1611284, 1754056, 2014105, 2192570, 3222568, 3508112, 4028210, 4385140, 6445136, 8056420, 8770280, 16112840, 17321303, 17540560, 32225680, 34642606, 69285212, 86606515, 138570424, 173213030, 277140848, 346426060, 692852120, 1385704240]

約数ペア:

[(1, 1385704240), (2, 692852120), (4, 346426060), (5, 277140848), (8, 173213030), (10, 138570424), (16, 86606515), (20, 69285212), (40, 34642606), (43, 32225680), (79, 17540560), (80, 17321303), (86, 16112840), (158, 8770280), (172, 8056420), (215, 6445136), (316, 4385140), (344, 4028210), (395, 3508112), (430, 3222568), (632, 2192570), (688, 2014105), (790, 1754056), (860, 1611284), (1264, 1096285), (1580, 877028), (1720, 805642), (3160, 438514), (3397, 407920), (3440, 402821), (5099, 271760), (6320, 219257), (6794, 203960), (10198, 135880), (13588, 101980), (16985, 81584), (20396, 67940), (25495, 54352), (27176, 50990), (33970, 40792)]