211397680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:219

約数の個数: 160

約数和(自身を含む): 559964160

約数和(自身を除く): 348566480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 79, 80, 83, 104, 124, 130, 155, 158, 166, 208, 248, 260, 310, 316, 332, 395, 403, 415, 496, 520, 620, 632, 664, 790, 806, 830, 1027, 1040, 1079, 1240, 1264, 1328, 1580, 1612, 1660, 2015, 2054, 2158, 2449, 2480, 2573, 3160, 3224, 3320, 4030, 4108, 4316, 4898, 5135, 5146, 5395, 6320, 6448, 6557, 6640, 8060, 8216, 8632, 9796, 10270, 10292, 10790, 12245, 12865, 13114, 16120, 16432, 17264, 19592, 20540, 20584, 21580, 24490, 25730, 26228, 31837, 32240, 32785, 33449, 39184, 41080, 41168, 43160, 48980, 51460, 52456, 63674, 65570, 66898, 82160, 85241, 86320, 97960, 102920, 104912, 127348, 131140, 133796, 159185, 167245, 170482, 195920, 203267, 205840, 254696, 262280, 267592, 318370, 334490, 340964, 406534, 426205, 509392, 524560, 535184, 636740, 668980, 681928, 813068, 852410, 1016335, 1273480, 1337960, 1363856, 1626136, 1704820, 2032670, 2546960, 2642471, 2675920, 3252272, 3409640, 4065340, 5284942, 6819280, 8130680, 10569884, 13212355, 16261360, 21139768, 26424710, 42279536, 52849420, 105698840, 211397680]

約数ペア:

[(1, 211397680), (2, 105698840), (4, 52849420), (5, 42279536), (8, 26424710), (10, 21139768), (13, 16261360), (16, 13212355), (20, 10569884), (26, 8130680), (31, 6819280), (40, 5284942), (52, 4065340), (62, 3409640), (65, 3252272), (79, 2675920), (80, 2642471), (83, 2546960), (104, 2032670), (124, 1704820), (130, 1626136), (155, 1363856), (158, 1337960), (166, 1273480), (208, 1016335), (248, 852410), (260, 813068), (310, 681928), (316, 668980), (332, 636740), (395, 535184), (403, 524560), (415, 509392), (496, 426205), (520, 406534), (620, 340964), (632, 334490), (664, 318370), (790, 267592), (806, 262280), (830, 254696), (1027, 205840), (1040, 203267), (1079, 195920), (1240, 170482), (1264, 167245), (1328, 159185), (1580, 133796), (1612, 131140), (1660, 127348), (2015, 104912), (2054, 102920), (2158, 97960), (2449, 86320), (2480, 85241), (2573, 82160), (3160, 66898), (3224, 65570), (3320, 63674), (4030, 52456), (4108, 51460), (4316, 48980), (4898, 43160), (5135, 41168), (5146, 41080), (5395, 39184), (6320, 33449), (6448, 32785), (6557, 32240), (6640, 31837), (8060, 26228), (8216, 25730), (8632, 24490), (9796, 21580), (10270, 20584), (10292, 20540), (10790, 19592), (12245, 17264), (12865, 16432), (13114, 16120)]