20512172340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{450421}}^1$

素因数の和:450470

約数の個数: 144

約数和(自身を含む): 70827958656

約数和(自身を除く): 50315786316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 30, 33, 36, 44, 45, 46, 55, 60, 66, 69, 90, 92, 99, 110, 115, 132, 138, 165, 180, 198, 207, 220, 230, 253, 276, 330, 345, 396, 414, 460, 495, 506, 660, 690, 759, 828, 990, 1012, 1035, 1265, 1380, 1518, 1980, 2070, 2277, 2530, 3036, 3795, 4140, 4554, 5060, 7590, 9108, 11385, 15180, 22770, 45540, 450421, 900842, 1351263, 1801684, 2252105, 2702526, 4053789, 4504210, 4954631, 5405052, 6756315, 8107578, 9008420, 9909262, 10359683, 13512630, 14863893, 16215156, 19818524, 20268945, 20719366, 24773155, 27025260, 29727786, 31079049, 40537890, 41438732, 44591679, 49546310, 51798415, 59455572, 62158098, 74319465, 81075780, 89183358, 93237147, 99092620, 103596830, 113956513, 124316196, 148638930, 155395245, 178366716, 186474294, 207193660, 222958395, 227913026, 297277860, 310790490, 341869539, 372948588, 445916790, 455826052, 466185735, 569782565, 621580980, 683739078, 891833580, 932371470, 1025608617, 1139565130, 1367478156, 1709347695, 1864742940, 2051217234, 2279130260, 3418695390, 4102434468, 5128043085, 6837390780, 10256086170, 20512172340]

約数ペア:

[(1, 20512172340), (2, 10256086170), (3, 6837390780), (4, 5128043085), (5, 4102434468), (6, 3418695390), (9, 2279130260), (10, 2051217234), (11, 1864742940), (12, 1709347695), (15, 1367478156), (18, 1139565130), (20, 1025608617), (22, 932371470), (23, 891833580), (30, 683739078), (33, 621580980), (36, 569782565), (44, 466185735), (45, 455826052), (46, 445916790), (55, 372948588), (60, 341869539), (66, 310790490), (69, 297277860), (90, 227913026), (92, 222958395), (99, 207193660), (110, 186474294), (115, 178366716), (132, 155395245), (138, 148638930), (165, 124316196), (180, 113956513), (198, 103596830), (207, 99092620), (220, 93237147), (230, 89183358), (253, 81075780), (276, 74319465), (330, 62158098), (345, 59455572), (396, 51798415), (414, 49546310), (460, 44591679), (495, 41438732), (506, 40537890), (660, 31079049), (690, 29727786), (759, 27025260), (828, 24773155), (990, 20719366), (1012, 20268945), (1035, 19818524), (1265, 16215156), (1380, 14863893), (1518, 13512630), (1980, 10359683), (2070, 9909262), (2277, 9008420), (2530, 8107578), (3036, 6756315), (3795, 5405052), (4140, 4954631), (4554, 4504210), (5060, 4053789), (7590, 2702526), (9108, 2252105), (11385, 1801684), (15180, 1351263), (22770, 900842), (45540, 450421)]