255388640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1$

素因数の和:844

約数の個数: 96

約数和(自身を含む): 654091200

約数和(自身を除く): 398702560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 199, 208, 260, 398, 416, 520, 617, 796, 995, 1040, 1234, 1592, 1990, 2080, 2468, 2587, 3085, 3184, 3980, 4936, 5174, 6170, 6368, 7960, 8021, 9872, 10348, 12340, 12935, 15920, 16042, 19744, 20696, 24680, 25870, 31840, 32084, 40105, 41392, 49360, 51740, 64168, 80210, 82784, 98720, 103480, 122783, 128336, 160420, 206960, 245566, 256672, 320840, 413920, 491132, 613915, 641680, 982264, 1227830, 1283360, 1596179, 1964528, 2455660, 3192358, 3929056, 4911320, 6384716, 7980895, 9822640, 12769432, 15961790, 19645280, 25538864, 31923580, 51077728, 63847160, 127694320, 255388640]

約数ペア:

[(1, 255388640), (2, 127694320), (4, 63847160), (5, 51077728), (8, 31923580), (10, 25538864), (13, 19645280), (16, 15961790), (20, 12769432), (26, 9822640), (32, 7980895), (40, 6384716), (52, 4911320), (65, 3929056), (80, 3192358), (104, 2455660), (130, 1964528), (160, 1596179), (199, 1283360), (208, 1227830), (260, 982264), (398, 641680), (416, 613915), (520, 491132), (617, 413920), (796, 320840), (995, 256672), (1040, 245566), (1234, 206960), (1592, 160420), (1990, 128336), (2080, 122783), (2468, 103480), (2587, 98720), (3085, 82784), (3184, 80210), (3980, 64168), (4936, 51740), (5174, 49360), (6170, 41392), (6368, 40105), (7960, 32084), (8021, 31840), (9872, 25870), (10348, 24680), (12340, 20696), (12935, 19744), (15920, 16042)]