138931160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{587}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 321541920

約数和(自身を除く): 182610760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 97, 122, 194, 244, 305, 388, 485, 488, 587, 610, 776, 970, 1174, 1220, 1940, 2348, 2440, 2935, 3880, 4696, 5870, 5917, 11740, 11834, 23480, 23668, 29585, 35807, 47336, 56939, 59170, 71614, 113878, 118340, 143228, 179035, 227756, 236680, 284695, 286456, 358070, 455512, 569390, 716140, 1138780, 1432280, 2277560, 3473279, 6946558, 13893116, 17366395, 27786232, 34732790, 69465580, 138931160]

約数ペア:

[(1, 138931160), (2, 69465580), (4, 34732790), (5, 27786232), (8, 17366395), (10, 13893116), (20, 6946558), (40, 3473279), (61, 2277560), (97, 1432280), (122, 1138780), (194, 716140), (244, 569390), (305, 455512), (388, 358070), (485, 286456), (488, 284695), (587, 236680), (610, 227756), (776, 179035), (970, 143228), (1174, 118340), (1220, 113878), (1940, 71614), (2348, 59170), (2440, 56939), (2935, 47336), (3880, 35807), (4696, 29585), (5870, 23668), (5917, 23480), (11740, 11834)]