42139720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 115358400

約数和(自身を除く): 73218680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 89, 95, 133, 140, 152, 178, 190, 266, 280, 356, 380, 445, 532, 623, 665, 712, 760, 890, 1064, 1246, 1330, 1691, 1780, 2492, 2660, 3115, 3382, 3560, 4984, 5320, 6230, 6764, 7921, 8455, 11837, 12460, 13528, 15842, 16910, 23674, 24920, 31684, 33820, 39605, 47348, 55447, 59185, 63368, 67640, 79210, 94696, 110894, 118370, 150499, 158420, 221788, 236740, 277235, 300998, 316840, 443576, 473480, 554470, 601996, 752495, 1053493, 1108940, 1203992, 1504990, 2106986, 2217880, 3009980, 4213972, 5267465, 6019960, 8427944, 10534930, 21069860, 42139720]

約数ペア:

[(1, 42139720), (2, 21069860), (4, 10534930), (5, 8427944), (7, 6019960), (8, 5267465), (10, 4213972), (14, 3009980), (19, 2217880), (20, 2106986), (28, 1504990), (35, 1203992), (38, 1108940), (40, 1053493), (56, 752495), (70, 601996), (76, 554470), (89, 473480), (95, 443576), (133, 316840), (140, 300998), (152, 277235), (178, 236740), (190, 221788), (266, 158420), (280, 150499), (356, 118370), (380, 110894), (445, 94696), (532, 79210), (623, 67640), (665, 63368), (712, 59185), (760, 55447), (890, 47348), (1064, 39605), (1246, 33820), (1330, 31684), (1691, 24920), (1780, 23674), (2492, 16910), (2660, 15842), (3115, 13528), (3382, 12460), (3560, 11837), (4984, 8455), (5320, 7921), (6230, 6764)]