201211320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1861}}^1$

素因数の和:1945

約数の個数: 128

約数和(自身を含む): 651551040

約数和(自身を除く): 450339720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 53, 60, 68, 85, 102, 106, 120, 136, 159, 170, 204, 212, 255, 265, 318, 340, 408, 424, 510, 530, 636, 680, 795, 901, 1020, 1060, 1272, 1590, 1802, 1861, 2040, 2120, 2703, 3180, 3604, 3722, 4505, 5406, 5583, 6360, 7208, 7444, 9010, 9305, 10812, 11166, 13515, 14888, 18020, 18610, 21624, 22332, 27030, 27915, 31637, 36040, 37220, 44664, 54060, 55830, 63274, 74440, 94911, 98633, 108120, 111660, 126548, 158185, 189822, 197266, 223320, 253096, 295899, 316370, 379644, 394532, 474555, 493165, 591798, 632740, 759288, 789064, 949110, 986330, 1183596, 1265480, 1479495, 1676761, 1898220, 1972660, 2367192, 2958990, 3353522, 3796440, 3945320, 5030283, 5917980, 6707044, 8383805, 10060566, 11835960, 13414088, 16767610, 20121132, 25151415, 33535220, 40242264, 50302830, 67070440, 100605660, 201211320]

約数ペア:

[(1, 201211320), (2, 100605660), (3, 67070440), (4, 50302830), (5, 40242264), (6, 33535220), (8, 25151415), (10, 20121132), (12, 16767610), (15, 13414088), (17, 11835960), (20, 10060566), (24, 8383805), (30, 6707044), (34, 5917980), (40, 5030283), (51, 3945320), (53, 3796440), (60, 3353522), (68, 2958990), (85, 2367192), (102, 1972660), (106, 1898220), (120, 1676761), (136, 1479495), (159, 1265480), (170, 1183596), (204, 986330), (212, 949110), (255, 789064), (265, 759288), (318, 632740), (340, 591798), (408, 493165), (424, 474555), (510, 394532), (530, 379644), (636, 316370), (680, 295899), (795, 253096), (901, 223320), (1020, 197266), (1060, 189822), (1272, 158185), (1590, 126548), (1802, 111660), (1861, 108120), (2040, 98633), (2120, 94911), (2703, 74440), (3180, 63274), (3604, 55830), (3722, 54060), (4505, 44664), (5406, 37220), (5583, 36040), (6360, 31637), (7208, 27915), (7444, 27030), (9010, 22332), (9305, 21624), (10812, 18610), (11166, 18020), (13515, 14888)]