257832720

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{4421}}^1$

素因数の和:4452

約数の個数: 140

約数和(自身を含む): 898983756

約数和(自身を除く): 641151036

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 729, 810, 972, 1080, 1215, 1296, 1458, 1620, 1944, 2160, 2430, 2916, 3240, 3645, 3888, 4421, 4860, 5832, 6480, 7290, 8842, 9720, 11664, 13263, 14580, 17684, 19440, 22105, 26526, 29160, 35368, 39789, 44210, 53052, 58320, 66315, 70736, 79578, 88420, 106104, 119367, 132630, 159156, 176840, 198945, 212208, 238734, 265260, 318312, 353680, 358101, 397890, 477468, 530520, 596835, 636624, 716202, 795780, 954936, 1061040, 1074303, 1193670, 1432404, 1591560, 1790505, 1909872, 2148606, 2387340, 2864808, 3183120, 3222909, 3581010, 4297212, 4774680, 5371515, 5729616, 6445818, 7162020, 8594424, 9549360, 10743030, 12891636, 14324040, 16114545, 17188848, 21486060, 25783272, 28648080, 32229090, 42972120, 51566544, 64458180, 85944240, 128916360, 257832720]

約数ペア:

[(1, 257832720), (2, 128916360), (3, 85944240), (4, 64458180), (5, 51566544), (6, 42972120), (8, 32229090), (9, 28648080), (10, 25783272), (12, 21486060), (15, 17188848), (16, 16114545), (18, 14324040), (20, 12891636), (24, 10743030), (27, 9549360), (30, 8594424), (36, 7162020), (40, 6445818), (45, 5729616), (48, 5371515), (54, 4774680), (60, 4297212), (72, 3581010), (80, 3222909), (81, 3183120), (90, 2864808), (108, 2387340), (120, 2148606), (135, 1909872), (144, 1790505), (162, 1591560), (180, 1432404), (216, 1193670), (240, 1074303), (243, 1061040), (270, 954936), (324, 795780), (360, 716202), (405, 636624), (432, 596835), (486, 530520), (540, 477468), (648, 397890), (720, 358101), (729, 353680), (810, 318312), (972, 265260), (1080, 238734), (1215, 212208), (1296, 198945), (1458, 176840), (1620, 159156), (1944, 132630), (2160, 119367), (2430, 106104), (2916, 88420), (3240, 79578), (3645, 70736), (3888, 66315), (4421, 58320), (4860, 53052), (5832, 44210), (6480, 39789), (7290, 35368), (8842, 29160), (9720, 26526), (11664, 22105), (13263, 19440), (14580, 17684)]