20512541296

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{487}}^1$

素因数の和:979

約数の個数: 120

約数和(自身を含む): 44394447264

約数和(自身を除く): 23881905968

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 169, 208, 296, 338, 421, 481, 487, 592, 676, 842, 962, 974, 1352, 1684, 1924, 1948, 2704, 3368, 3848, 3896, 5473, 6253, 6331, 6736, 7696, 7792, 10946, 12506, 12662, 15577, 18019, 21892, 25012, 25324, 31154, 36038, 43784, 50024, 50648, 62308, 71149, 72076, 82303, 87568, 100048, 101296, 124616, 142298, 144152, 164606, 202501, 205027, 234247, 249232, 284596, 288304, 329212, 405002, 410054, 468494, 569192, 658424, 810004, 820108, 936988, 1138384, 1316848, 1620008, 1640216, 1873976, 2632513, 2665351, 3045211, 3240016, 3280432, 3747952, 5265026, 5330702, 6090422, 7585999, 10530052, 10661404, 12180844, 15171998, 21060104, 21322808, 24361688, 30343996, 34649563, 42120208, 42645616, 48723376, 60687992, 69299126, 98617987, 121375984, 138598252, 197235974, 277196504, 394471948, 554393008, 788943896, 1282033831, 1577887792, 2564067662, 5128135324, 10256270648, 20512541296]

約数ペア:

[(1, 20512541296), (2, 10256270648), (4, 5128135324), (8, 2564067662), (13, 1577887792), (16, 1282033831), (26, 788943896), (37, 554393008), (52, 394471948), (74, 277196504), (104, 197235974), (148, 138598252), (169, 121375984), (208, 98617987), (296, 69299126), (338, 60687992), (421, 48723376), (481, 42645616), (487, 42120208), (592, 34649563), (676, 30343996), (842, 24361688), (962, 21322808), (974, 21060104), (1352, 15171998), (1684, 12180844), (1924, 10661404), (1948, 10530052), (2704, 7585999), (3368, 6090422), (3848, 5330702), (3896, 5265026), (5473, 3747952), (6253, 3280432), (6331, 3240016), (6736, 3045211), (7696, 2665351), (7792, 2632513), (10946, 1873976), (12506, 1640216), (12662, 1620008), (15577, 1316848), (18019, 1138384), (21892, 936988), (25012, 820108), (25324, 810004), (31154, 658424), (36038, 569192), (43784, 468494), (50024, 410054), (50648, 405002), (62308, 329212), (71149, 288304), (72076, 284596), (82303, 249232), (87568, 234247), (100048, 205027), (101296, 202501), (124616, 164606), (142298, 144152)]