280029720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:473

約数の個数: 128

約数和(自身を含む): 861696000

約数和(自身を除く): 581666280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 109, 120, 158, 218, 237, 271, 316, 327, 395, 436, 474, 542, 545, 632, 654, 790, 813, 872, 948, 1084, 1090, 1185, 1308, 1355, 1580, 1626, 1635, 1896, 2168, 2180, 2370, 2616, 2710, 3160, 3252, 3270, 4065, 4360, 4740, 5420, 6504, 6540, 8130, 8611, 9480, 10840, 13080, 16260, 17222, 21409, 25833, 29539, 32520, 34444, 42818, 43055, 51666, 59078, 64227, 68888, 85636, 86110, 88617, 103332, 107045, 118156, 128454, 129165, 147695, 171272, 172220, 177234, 206664, 214090, 236312, 256908, 258330, 295390, 321135, 344440, 354468, 428180, 443085, 513816, 516660, 590780, 642270, 708936, 856360, 886170, 1033320, 1181560, 1284540, 1772340, 2333581, 2569080, 3544680, 4667162, 7000743, 9334324, 11667905, 14001486, 18668648, 23335810, 28002972, 35003715, 46671620, 56005944, 70007430, 93343240, 140014860, 280029720]

約数ペア:

[(1, 280029720), (2, 140014860), (3, 93343240), (4, 70007430), (5, 56005944), (6, 46671620), (8, 35003715), (10, 28002972), (12, 23335810), (15, 18668648), (20, 14001486), (24, 11667905), (30, 9334324), (40, 7000743), (60, 4667162), (79, 3544680), (109, 2569080), (120, 2333581), (158, 1772340), (218, 1284540), (237, 1181560), (271, 1033320), (316, 886170), (327, 856360), (395, 708936), (436, 642270), (474, 590780), (542, 516660), (545, 513816), (632, 443085), (654, 428180), (790, 354468), (813, 344440), (872, 321135), (948, 295390), (1084, 258330), (1090, 256908), (1185, 236312), (1308, 214090), (1355, 206664), (1580, 177234), (1626, 172220), (1635, 171272), (1896, 147695), (2168, 129165), (2180, 128454), (2370, 118156), (2616, 107045), (2710, 103332), (3160, 88617), (3252, 86110), (3270, 85636), (4065, 68888), (4360, 64227), (4740, 59078), (5420, 51666), (6504, 43055), (6540, 42818), (8130, 34444), (8611, 32520), (9480, 29539), (10840, 25833), (13080, 21409), (16260, 17222)]