20215148072

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1\times {\mathrm{8831}}^1$

素因数の和:9882

約数の個数: 64

約数和(自身を含む): 44424253440

約数和(自身を除く): 24209105368

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 997, 1148, 1994, 2296, 3988, 6979, 7976, 8831, 13958, 17662, 27916, 35324, 40877, 55832, 61817, 70648, 81754, 123634, 163508, 247268, 286139, 327016, 362071, 494536, 572278, 724142, 1144556, 1448284, 2289112, 2534497, 2896568, 5068994, 8804507, 10137988, 17609014, 20275976, 35218028, 61631549, 70436056, 123263098, 246526196, 360984787, 493052392, 721969574, 1443939148, 2526893509, 2887878296, 5053787018, 10107574036, 20215148072]

約数ペア:

[(1, 20215148072), (2, 10107574036), (4, 5053787018), (7, 2887878296), (8, 2526893509), (14, 1443939148), (28, 721969574), (41, 493052392), (56, 360984787), (82, 246526196), (164, 123263098), (287, 70436056), (328, 61631549), (574, 35218028), (997, 20275976), (1148, 17609014), (1994, 10137988), (2296, 8804507), (3988, 5068994), (6979, 2896568), (7976, 2534497), (8831, 2289112), (13958, 1448284), (17662, 1144556), (27916, 724142), (35324, 572278), (40877, 494536), (55832, 362071), (61817, 327016), (70648, 286139), (81754, 247268), (123634, 163508)]