1313212777640

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{7297}}^1\times {\mathrm{21323}}^1$

素因数の和:28842

約数の個数: 64

約数和(自身を含む): 2969278292160

約数和(自身を除く): 1656065514520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 7297, 8440, 14594, 21323, 29188, 36485, 42646, 58376, 72970, 85292, 106615, 145940, 170584, 213230, 291880, 426460, 852920, 1539667, 3079334, 4499153, 6158668, 7698335, 8998306, 12317336, 15396670, 17996612, 22495765, 30793340, 35993224, 44991530, 61586680, 89983060, 155593931, 179966120, 311187862, 622375724, 777969655, 1244751448, 1555939310, 3111878620, 6223757240, 32830319441, 65660638882, 131321277764, 164151597205, 262642555528, 328303194410, 656606388820, 1313212777640]

約数ペア:

[(1, 1313212777640), (2, 656606388820), (4, 328303194410), (5, 262642555528), (8, 164151597205), (10, 131321277764), (20, 65660638882), (40, 32830319441), (211, 6223757240), (422, 3111878620), (844, 1555939310), (1055, 1244751448), (1688, 777969655), (2110, 622375724), (4220, 311187862), (7297, 179966120), (8440, 155593931), (14594, 89983060), (21323, 61586680), (29188, 44991530), (36485, 35993224), (42646, 30793340), (58376, 22495765), (72970, 17996612), (85292, 15396670), (106615, 12317336), (145940, 8998306), (170584, 7698335), (213230, 6158668), (291880, 4499153), (426460, 3079334), (852920, 1539667)]