20466420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1425

約数の個数: 96

約数和(自身を含む): 65009280

約数和(自身を除く): 44542860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1381, 1482, 2470, 2762, 2964, 3705, 4143, 4940, 5524, 6905, 7410, 8286, 13810, 14820, 16572, 17953, 20715, 26239, 27620, 35906, 41430, 52478, 53859, 71812, 78717, 82860, 89765, 104956, 107718, 131195, 157434, 179530, 215436, 262390, 269295, 314868, 341107, 359060, 393585, 524780, 538590, 682214, 787170, 1023321, 1077180, 1364428, 1574340, 1705535, 2046642, 3411070, 4093284, 5116605, 6822140, 10233210, 20466420]

約数ペア:

[(1, 20466420), (2, 10233210), (3, 6822140), (4, 5116605), (5, 4093284), (6, 3411070), (10, 2046642), (12, 1705535), (13, 1574340), (15, 1364428), (19, 1077180), (20, 1023321), (26, 787170), (30, 682214), (38, 538590), (39, 524780), (52, 393585), (57, 359060), (60, 341107), (65, 314868), (76, 269295), (78, 262390), (95, 215436), (114, 179530), (130, 157434), (156, 131195), (190, 107718), (195, 104956), (228, 89765), (247, 82860), (260, 78717), (285, 71812), (380, 53859), (390, 52478), (494, 41430), (570, 35906), (741, 27620), (780, 26239), (988, 20715), (1140, 17953), (1235, 16572), (1381, 14820), (1482, 13810), (2470, 8286), (2762, 7410), (2964, 6905), (3705, 5524), (4143, 4940)]