30857260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^2$

素因数の和:120

約数の個数: 108

約数和(自身を含む): 80840592

約数和(自身を除く): 49983332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 37, 46, 49, 70, 74, 92, 98, 115, 140, 148, 161, 185, 196, 230, 245, 259, 322, 370, 460, 490, 518, 644, 740, 805, 851, 980, 1036, 1127, 1295, 1369, 1610, 1702, 1813, 2254, 2590, 2738, 3220, 3404, 3626, 4255, 4508, 5180, 5476, 5635, 5957, 6845, 7252, 8510, 9065, 9583, 11270, 11914, 13690, 17020, 18130, 19166, 22540, 23828, 27380, 29785, 31487, 36260, 38332, 41699, 47915, 59570, 62974, 67081, 83398, 95830, 119140, 125948, 134162, 157435, 166796, 191660, 208495, 220409, 268324, 314870, 335405, 416990, 440818, 629740, 670810, 833980, 881636, 1102045, 1341620, 1542863, 2204090, 3085726, 4408180, 6171452, 7714315, 15428630, 30857260]

約数ペア:

[(1, 30857260), (2, 15428630), (4, 7714315), (5, 6171452), (7, 4408180), (10, 3085726), (14, 2204090), (20, 1542863), (23, 1341620), (28, 1102045), (35, 881636), (37, 833980), (46, 670810), (49, 629740), (70, 440818), (74, 416990), (92, 335405), (98, 314870), (115, 268324), (140, 220409), (148, 208495), (161, 191660), (185, 166796), (196, 157435), (230, 134162), (245, 125948), (259, 119140), (322, 95830), (370, 83398), (460, 67081), (490, 62974), (518, 59570), (644, 47915), (740, 41699), (805, 38332), (851, 36260), (980, 31487), (1036, 29785), (1127, 27380), (1295, 23828), (1369, 22540), (1610, 19166), (1702, 18130), (1813, 17020), (2254, 13690), (2590, 11914), (2738, 11270), (3220, 9583), (3404, 9065), (3626, 8510), (4255, 7252), (4508, 6845), (5180, 5957), (5476, 5635)]