20121750

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{271}}^1$

素因数の和:308

約数の個数: 128

約数和(自身を含む): 61102080

約数和(自身を除く): 40980330

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 27, 30, 33, 45, 50, 54, 55, 66, 75, 90, 99, 110, 125, 135, 150, 165, 198, 225, 250, 270, 271, 275, 297, 330, 375, 450, 495, 542, 550, 594, 675, 750, 813, 825, 990, 1125, 1350, 1355, 1375, 1485, 1626, 1650, 2250, 2439, 2475, 2710, 2750, 2970, 2981, 3375, 4065, 4125, 4878, 4950, 5962, 6750, 6775, 7317, 7425, 8130, 8250, 8943, 12195, 12375, 13550, 14634, 14850, 14905, 17886, 20325, 24390, 24750, 26829, 29810, 33875, 36585, 37125, 40650, 44715, 53658, 60975, 67750, 73170, 74250, 74525, 80487, 89430, 101625, 121950, 134145, 149050, 160974, 182925, 203250, 223575, 268290, 304875, 365850, 372625, 402435, 447150, 609750, 670725, 745250, 804870, 914625, 1117875, 1341450, 1829250, 2012175, 2235750, 3353625, 4024350, 6707250, 10060875, 20121750]

約数ペア:

[(1, 20121750), (2, 10060875), (3, 6707250), (5, 4024350), (6, 3353625), (9, 2235750), (10, 2012175), (11, 1829250), (15, 1341450), (18, 1117875), (22, 914625), (25, 804870), (27, 745250), (30, 670725), (33, 609750), (45, 447150), (50, 402435), (54, 372625), (55, 365850), (66, 304875), (75, 268290), (90, 223575), (99, 203250), (110, 182925), (125, 160974), (135, 149050), (150, 134145), (165, 121950), (198, 101625), (225, 89430), (250, 80487), (270, 74525), (271, 74250), (275, 73170), (297, 67750), (330, 60975), (375, 53658), (450, 44715), (495, 40650), (542, 37125), (550, 36585), (594, 33875), (675, 29810), (750, 26829), (813, 24750), (825, 24390), (990, 20325), (1125, 17886), (1350, 14905), (1355, 14850), (1375, 14634), (1485, 13550), (1626, 12375), (1650, 12195), (2250, 8943), (2439, 8250), (2475, 8130), (2710, 7425), (2750, 7317), (2970, 6775), (2981, 6750), (3375, 5962), (4065, 4950), (4125, 4878)]