156931420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^2$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 358467984

約数和(自身を除く): 201536564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 83, 85, 134, 166, 170, 268, 332, 335, 340, 415, 670, 830, 1139, 1340, 1411, 1660, 2278, 2822, 4556, 5561, 5644, 5695, 6889, 7055, 11122, 11390, 13778, 14110, 22244, 22780, 27556, 27805, 28220, 34445, 55610, 68890, 94537, 111220, 117113, 137780, 189074, 234226, 378148, 461563, 468452, 472685, 585565, 923126, 945370, 1171130, 1846252, 1890740, 2307815, 2342260, 4615630, 7846571, 9231260, 15693142, 31386284, 39232855, 78465710, 156931420]

約数ペア:

[(1, 156931420), (2, 78465710), (4, 39232855), (5, 31386284), (10, 15693142), (17, 9231260), (20, 7846571), (34, 4615630), (67, 2342260), (68, 2307815), (83, 1890740), (85, 1846252), (134, 1171130), (166, 945370), (170, 923126), (268, 585565), (332, 472685), (335, 468452), (340, 461563), (415, 378148), (670, 234226), (830, 189074), (1139, 137780), (1340, 117113), (1411, 111220), (1660, 94537), (2278, 68890), (2822, 55610), (4556, 34445), (5561, 28220), (5644, 27805), (5695, 27556), (6889, 22780), (7055, 22244), (11122, 14110), (11390, 13778)]