72149840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6781}}^1$

素因数の和:6820

約数の個数: 80

約数和(自身を含む): 201832320

約数和(自身を除く): 129682480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 6781, 10640, 13562, 27124, 33905, 47467, 54248, 67810, 94934, 108496, 128839, 135620, 189868, 237335, 257678, 271240, 379736, 474670, 515356, 542480, 644195, 759472, 901873, 949340, 1030712, 1288390, 1803746, 1898680, 2061424, 2576780, 3607492, 3797360, 4509365, 5153560, 7214984, 9018730, 10307120, 14429968, 18037460, 36074920, 72149840]

約数ペア:

[(1, 72149840), (2, 36074920), (4, 18037460), (5, 14429968), (7, 10307120), (8, 9018730), (10, 7214984), (14, 5153560), (16, 4509365), (19, 3797360), (20, 3607492), (28, 2576780), (35, 2061424), (38, 1898680), (40, 1803746), (56, 1288390), (70, 1030712), (76, 949340), (80, 901873), (95, 759472), (112, 644195), (133, 542480), (140, 515356), (152, 474670), (190, 379736), (266, 271240), (280, 257678), (304, 237335), (380, 189868), (532, 135620), (560, 128839), (665, 108496), (760, 94934), (1064, 67810), (1330, 54248), (1520, 47467), (2128, 33905), (2660, 27124), (5320, 13562), (6781, 10640)]