315551480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{641}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 735886080

約数和(自身を除く): 420334600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 397, 620, 641, 794, 1240, 1282, 1588, 1985, 2564, 3176, 3205, 3970, 5128, 6410, 7940, 12307, 12820, 15880, 19871, 24614, 25640, 39742, 49228, 61535, 79484, 98456, 99355, 123070, 158968, 198710, 246140, 254477, 397420, 492280, 508954, 794840, 1017908, 1272385, 2035816, 2544770, 5089540, 7888787, 10179080, 15777574, 31555148, 39443935, 63110296, 78887870, 157775740, 315551480]

約数ペア:

[(1, 315551480), (2, 157775740), (4, 78887870), (5, 63110296), (8, 39443935), (10, 31555148), (20, 15777574), (31, 10179080), (40, 7888787), (62, 5089540), (124, 2544770), (155, 2035816), (248, 1272385), (310, 1017908), (397, 794840), (620, 508954), (641, 492280), (794, 397420), (1240, 254477), (1282, 246140), (1588, 198710), (1985, 158968), (2564, 123070), (3176, 99355), (3205, 98456), (3970, 79484), (5128, 61535), (6410, 49228), (7940, 39742), (12307, 25640), (12820, 24614), (15880, 19871)]