668440240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:327

約数の個数: 160

約数和(自身を含む): 1740263616

約数和(自身を除く): 1071823376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 67, 80, 104, 106, 130, 134, 181, 208, 212, 260, 265, 268, 335, 362, 424, 520, 530, 536, 670, 689, 724, 848, 871, 905, 1040, 1060, 1072, 1340, 1378, 1448, 1742, 1810, 2120, 2353, 2680, 2756, 2896, 3445, 3484, 3551, 3620, 4240, 4355, 4706, 5360, 5512, 6890, 6968, 7102, 7240, 8710, 9412, 9593, 11024, 11765, 12127, 13780, 13936, 14204, 14480, 17420, 17755, 18824, 19186, 23530, 24254, 27560, 28408, 34840, 35510, 37648, 38372, 46163, 47060, 47965, 48508, 55120, 56816, 60635, 69680, 71020, 76744, 92326, 94120, 95930, 97016, 121270, 124709, 142040, 153488, 157651, 184652, 188240, 191860, 194032, 230815, 242540, 249418, 284080, 315302, 369304, 383720, 461630, 485080, 498836, 623545, 630604, 642731, 738608, 767440, 788255, 923260, 970160, 997672, 1247090, 1261208, 1285462, 1576510, 1846520, 1995344, 2494180, 2522416, 2570924, 3153020, 3213655, 3693040, 4988360, 5141848, 6306040, 6427310, 8355503, 9976720, 10283696, 12612080, 12854620, 16711006, 25709240, 33422012, 41777515, 51418480, 66844024, 83555030, 133688048, 167110060, 334220120, 668440240]

約数ペア:

[(1, 668440240), (2, 334220120), (4, 167110060), (5, 133688048), (8, 83555030), (10, 66844024), (13, 51418480), (16, 41777515), (20, 33422012), (26, 25709240), (40, 16711006), (52, 12854620), (53, 12612080), (65, 10283696), (67, 9976720), (80, 8355503), (104, 6427310), (106, 6306040), (130, 5141848), (134, 4988360), (181, 3693040), (208, 3213655), (212, 3153020), (260, 2570924), (265, 2522416), (268, 2494180), (335, 1995344), (362, 1846520), (424, 1576510), (520, 1285462), (530, 1261208), (536, 1247090), (670, 997672), (689, 970160), (724, 923260), (848, 788255), (871, 767440), (905, 738608), (1040, 642731), (1060, 630604), (1072, 623545), (1340, 498836), (1378, 485080), (1448, 461630), (1742, 383720), (1810, 369304), (2120, 315302), (2353, 284080), (2680, 249418), (2756, 242540), (2896, 230815), (3445, 194032), (3484, 191860), (3551, 188240), (3620, 184652), (4240, 157651), (4355, 153488), (4706, 142040), (5360, 124709), (5512, 121270), (6890, 97016), (6968, 95930), (7102, 94120), (7240, 92326), (8710, 76744), (9412, 71020), (9593, 69680), (11024, 60635), (11765, 56816), (12127, 55120), (13780, 48508), (13936, 47965), (14204, 47060), (14480, 46163), (17420, 38372), (17755, 37648), (18824, 35510), (19186, 34840), (23530, 28408), (24254, 27560)]