20218986536

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{76543}}^1$

素因数の和:76698

約数の個数: 64

約数和(自身を含む): 44640460800

約数和(自身を除く): 24421474264

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 89, 106, 178, 212, 356, 371, 424, 623, 712, 742, 1246, 1484, 2492, 2968, 4717, 4984, 9434, 18868, 33019, 37736, 66038, 76543, 132076, 153086, 264152, 306172, 535801, 612344, 1071602, 2143204, 4056779, 4286408, 6812327, 8113558, 13624654, 16227116, 27249308, 28397453, 32454232, 47686289, 54498616, 56794906, 95372578, 113589812, 190745156, 227179624, 361053331, 381490312, 722106662, 1444213324, 2527373317, 2888426648, 5054746634, 10109493268, 20218986536]

約数ペア:

[(1, 20218986536), (2, 10109493268), (4, 5054746634), (7, 2888426648), (8, 2527373317), (14, 1444213324), (28, 722106662), (53, 381490312), (56, 361053331), (89, 227179624), (106, 190745156), (178, 113589812), (212, 95372578), (356, 56794906), (371, 54498616), (424, 47686289), (623, 32454232), (712, 28397453), (742, 27249308), (1246, 16227116), (1484, 13624654), (2492, 8113558), (2968, 6812327), (4717, 4286408), (4984, 4056779), (9434, 2143204), (18868, 1071602), (33019, 612344), (37736, 535801), (66038, 306172), (76543, 264152), (132076, 153086)]