77777812

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 167227200

約数和(自身を除く): 89449388

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 59, 89, 92, 118, 161, 178, 236, 322, 356, 413, 529, 623, 644, 826, 1058, 1246, 1357, 1652, 2047, 2116, 2492, 2714, 3703, 4094, 5251, 5428, 7406, 8188, 9499, 10502, 14329, 14812, 18998, 21004, 28658, 31211, 36757, 37996, 47081, 57316, 62422, 73514, 94162, 120773, 124844, 147028, 188324, 218477, 241546, 329567, 436954, 483092, 659134, 845411, 873908, 1318268, 1690822, 2777779, 3381644, 5555558, 11111116, 19444453, 38888906, 77777812]

約数ペア:

[(1, 77777812), (2, 38888906), (4, 19444453), (7, 11111116), (14, 5555558), (23, 3381644), (28, 2777779), (46, 1690822), (59, 1318268), (89, 873908), (92, 845411), (118, 659134), (161, 483092), (178, 436954), (236, 329567), (322, 241546), (356, 218477), (413, 188324), (529, 147028), (623, 124844), (644, 120773), (826, 94162), (1058, 73514), (1246, 62422), (1357, 57316), (1652, 47081), (2047, 37996), (2116, 36757), (2492, 31211), (2714, 28658), (3703, 21004), (4094, 18998), (5251, 14812), (5428, 14329), (7406, 10502), (8188, 9499)]