20344080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 67852800

約数和(自身を除く): 47508720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 37, 40, 48, 58, 60, 74, 79, 80, 87, 111, 116, 120, 145, 148, 158, 174, 185, 222, 232, 237, 240, 290, 296, 316, 348, 370, 395, 435, 444, 464, 474, 555, 580, 592, 632, 696, 740, 790, 870, 888, 948, 1073, 1110, 1160, 1185, 1264, 1392, 1480, 1580, 1740, 1776, 1896, 2146, 2220, 2291, 2320, 2370, 2923, 2960, 3160, 3219, 3480, 3792, 4292, 4440, 4582, 4740, 5365, 5846, 6320, 6438, 6873, 6960, 8584, 8769, 8880, 9164, 9480, 10730, 11455, 11692, 12876, 13746, 14615, 16095, 17168, 17538, 18328, 18960, 21460, 22910, 23384, 25752, 27492, 29230, 32190, 34365, 35076, 36656, 42920, 43845, 45820, 46768, 51504, 54984, 58460, 64380, 68730, 70152, 84767, 85840, 87690, 91640, 109968, 116920, 128760, 137460, 140304, 169534, 175380, 183280, 233840, 254301, 257520, 274920, 339068, 350760, 423835, 508602, 549840, 678136, 701520, 847670, 1017204, 1271505, 1356272, 1695340, 2034408, 2543010, 3390680, 4068816, 5086020, 6781360, 10172040, 20344080]

約数ペア:

[(1, 20344080), (2, 10172040), (3, 6781360), (4, 5086020), (5, 4068816), (6, 3390680), (8, 2543010), (10, 2034408), (12, 1695340), (15, 1356272), (16, 1271505), (20, 1017204), (24, 847670), (29, 701520), (30, 678136), (37, 549840), (40, 508602), (48, 423835), (58, 350760), (60, 339068), (74, 274920), (79, 257520), (80, 254301), (87, 233840), (111, 183280), (116, 175380), (120, 169534), (145, 140304), (148, 137460), (158, 128760), (174, 116920), (185, 109968), (222, 91640), (232, 87690), (237, 85840), (240, 84767), (290, 70152), (296, 68730), (316, 64380), (348, 58460), (370, 54984), (395, 51504), (435, 46768), (444, 45820), (464, 43845), (474, 42920), (555, 36656), (580, 35076), (592, 34365), (632, 32190), (696, 29230), (740, 27492), (790, 25752), (870, 23384), (888, 22910), (948, 21460), (1073, 18960), (1110, 18328), (1160, 17538), (1185, 17168), (1264, 16095), (1392, 14615), (1480, 13746), (1580, 12876), (1740, 11692), (1776, 11455), (1896, 10730), (2146, 9480), (2220, 9164), (2291, 8880), (2320, 8769), (2370, 8584), (2923, 6960), (2960, 6873), (3160, 6438), (3219, 6320), (3480, 5846), (3792, 5365), (4292, 4740), (4440, 4582)]