1902001280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2591}}^1$

素因数の和:2678

約数の個数: 128

約数和(自身を含む): 4822364160

約数和(自身を除く): 2920362880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 248, 296, 310, 320, 370, 496, 592, 620, 640, 740, 992, 1147, 1184, 1240, 1480, 1984, 2294, 2368, 2480, 2591, 2960, 3968, 4588, 4736, 4960, 5182, 5735, 5920, 9176, 9920, 10364, 11470, 11840, 12955, 18352, 19840, 20728, 22940, 23680, 25910, 36704, 41456, 45880, 51820, 73408, 80321, 82912, 91760, 95867, 103640, 146816, 160642, 165824, 183520, 191734, 207280, 321284, 331648, 367040, 383468, 401605, 414560, 479335, 642568, 734080, 766936, 803210, 829120, 958670, 1285136, 1533872, 1606420, 1658240, 1917340, 2570272, 2971877, 3067744, 3212840, 3834680, 5140544, 5943754, 6135488, 6425680, 7669360, 10281088, 11887508, 12270976, 12851360, 14859385, 15338720, 23775016, 25702720, 29718770, 30677440, 47550032, 51405440, 59437540, 61354880, 95100064, 118875080, 190200128, 237750160, 380400256, 475500320, 951000640, 1902001280]

約数ペア:

[(1, 1902001280), (2, 951000640), (4, 475500320), (5, 380400256), (8, 237750160), (10, 190200128), (16, 118875080), (20, 95100064), (31, 61354880), (32, 59437540), (37, 51405440), (40, 47550032), (62, 30677440), (64, 29718770), (74, 25702720), (80, 23775016), (124, 15338720), (128, 14859385), (148, 12851360), (155, 12270976), (160, 11887508), (185, 10281088), (248, 7669360), (296, 6425680), (310, 6135488), (320, 5943754), (370, 5140544), (496, 3834680), (592, 3212840), (620, 3067744), (640, 2971877), (740, 2570272), (992, 1917340), (1147, 1658240), (1184, 1606420), (1240, 1533872), (1480, 1285136), (1984, 958670), (2294, 829120), (2368, 803210), (2480, 766936), (2591, 734080), (2960, 642568), (3968, 479335), (4588, 414560), (4736, 401605), (4960, 383468), (5182, 367040), (5735, 331648), (5920, 321284), (9176, 207280), (9920, 191734), (10364, 183520), (11470, 165824), (11840, 160642), (12955, 146816), (18352, 103640), (19840, 95867), (20728, 91760), (22940, 82912), (23680, 80321), (25910, 73408), (36704, 51820), (41456, 45880)]