81896880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26249}}^1$

素因数の和:26278

約数の個数: 80

約数和(自身を含む): 273420000

約数和(自身を除く): 191523120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 26249, 52498, 78747, 104996, 131245, 157494, 209992, 262490, 314988, 341237, 393735, 419984, 524980, 629976, 682474, 787470, 1023711, 1049960, 1259952, 1364948, 1574940, 1706185, 2047422, 2099920, 2729896, 3149880, 3412370, 4094844, 5118555, 5459792, 6299760, 6824740, 8189688, 10237110, 13649480, 16379376, 20474220, 27298960, 40948440, 81896880]

約数ペア:

[(1, 81896880), (2, 40948440), (3, 27298960), (4, 20474220), (5, 16379376), (6, 13649480), (8, 10237110), (10, 8189688), (12, 6824740), (13, 6299760), (15, 5459792), (16, 5118555), (20, 4094844), (24, 3412370), (26, 3149880), (30, 2729896), (39, 2099920), (40, 2047422), (48, 1706185), (52, 1574940), (60, 1364948), (65, 1259952), (78, 1049960), (80, 1023711), (104, 787470), (120, 682474), (130, 629976), (156, 524980), (195, 419984), (208, 393735), (240, 341237), (260, 314988), (312, 262490), (390, 209992), (520, 157494), (624, 131245), (780, 104996), (1040, 78747), (1560, 52498), (3120, 26249)]