2501940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:86

約数の個数: 144

約数和(自身を含む): 8733312

約数和(自身を除く): 6231372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 37, 42, 46, 49, 60, 69, 70, 74, 84, 92, 98, 105, 111, 115, 138, 140, 147, 148, 161, 185, 196, 210, 222, 230, 245, 259, 276, 294, 322, 345, 370, 420, 444, 460, 483, 490, 518, 555, 588, 644, 690, 735, 740, 777, 805, 851, 966, 980, 1036, 1110, 1127, 1295, 1380, 1470, 1554, 1610, 1702, 1813, 1932, 2220, 2254, 2415, 2553, 2590, 2940, 3108, 3220, 3381, 3404, 3626, 3885, 4255, 4508, 4830, 5106, 5180, 5439, 5635, 5957, 6762, 7252, 7770, 8510, 9065, 9660, 10212, 10878, 11270, 11914, 12765, 13524, 15540, 16905, 17020, 17871, 18130, 21756, 22540, 23828, 25530, 27195, 29785, 33810, 35742, 36260, 41699, 51060, 54390, 59570, 67620, 71484, 83398, 89355, 108780, 119140, 125097, 166796, 178710, 208495, 250194, 357420, 416990, 500388, 625485, 833980, 1250970, 2501940]

約数ペア:

[(1, 2501940), (2, 1250970), (3, 833980), (4, 625485), (5, 500388), (6, 416990), (7, 357420), (10, 250194), (12, 208495), (14, 178710), (15, 166796), (20, 125097), (21, 119140), (23, 108780), (28, 89355), (30, 83398), (35, 71484), (37, 67620), (42, 59570), (46, 54390), (49, 51060), (60, 41699), (69, 36260), (70, 35742), (74, 33810), (84, 29785), (92, 27195), (98, 25530), (105, 23828), (111, 22540), (115, 21756), (138, 18130), (140, 17871), (147, 17020), (148, 16905), (161, 15540), (185, 13524), (196, 12765), (210, 11914), (222, 11270), (230, 10878), (245, 10212), (259, 9660), (276, 9065), (294, 8510), (322, 7770), (345, 7252), (370, 6762), (420, 5957), (444, 5635), (460, 5439), (483, 5180), (490, 5106), (518, 4830), (555, 4508), (588, 4255), (644, 3885), (690, 3626), (735, 3404), (740, 3381), (777, 3220), (805, 3108), (851, 2940), (966, 2590), (980, 2553), (1036, 2415), (1110, 2254), (1127, 2220), (1295, 1932), (1380, 1813), (1470, 1702), (1554, 1610)]