64488680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 151303680

約数和(自身を除く): 86815000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 397, 524, 620, 655, 794, 1048, 1240, 1310, 1588, 1985, 2620, 3176, 3970, 4061, 5240, 7940, 8122, 12307, 15880, 16244, 20305, 24614, 32488, 40610, 49228, 52007, 61535, 81220, 98456, 104014, 123070, 162440, 208028, 246140, 260035, 416056, 492280, 520070, 1040140, 1612217, 2080280, 3224434, 6448868, 8061085, 12897736, 16122170, 32244340, 64488680]

約数ペア:

[(1, 64488680), (2, 32244340), (4, 16122170), (5, 12897736), (8, 8061085), (10, 6448868), (20, 3224434), (31, 2080280), (40, 1612217), (62, 1040140), (124, 520070), (131, 492280), (155, 416056), (248, 260035), (262, 246140), (310, 208028), (397, 162440), (524, 123070), (620, 104014), (655, 98456), (794, 81220), (1048, 61535), (1240, 52007), (1310, 49228), (1588, 40610), (1985, 32488), (2620, 24614), (3176, 20305), (3970, 16244), (4061, 15880), (5240, 12307), (7940, 8122)]