85700120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 222842880

約数和(自身を除く): 137142760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 61, 62, 88, 103, 110, 122, 124, 155, 206, 220, 244, 248, 305, 310, 341, 412, 440, 488, 515, 610, 620, 671, 682, 824, 1030, 1133, 1220, 1240, 1342, 1364, 1705, 1891, 2060, 2266, 2440, 2684, 2728, 3193, 3355, 3410, 3782, 4120, 4532, 5368, 5665, 6283, 6386, 6710, 6820, 7564, 9064, 9455, 11330, 12566, 12772, 13420, 13640, 15128, 15965, 18910, 20801, 22660, 25132, 25544, 26840, 31415, 31930, 35123, 37820, 41602, 45320, 50264, 62830, 63860, 69113, 70246, 75640, 83204, 104005, 125660, 127720, 138226, 140492, 166408, 175615, 194773, 208010, 251320, 276452, 280984, 345565, 351230, 389546, 416020, 552904, 691130, 702460, 779092, 832040, 973865, 1382260, 1404920, 1558184, 1947730, 2142503, 2764520, 3895460, 4285006, 7790920, 8570012, 10712515, 17140024, 21425030, 42850060, 85700120]

約数ペア:

[(1, 85700120), (2, 42850060), (4, 21425030), (5, 17140024), (8, 10712515), (10, 8570012), (11, 7790920), (20, 4285006), (22, 3895460), (31, 2764520), (40, 2142503), (44, 1947730), (55, 1558184), (61, 1404920), (62, 1382260), (88, 973865), (103, 832040), (110, 779092), (122, 702460), (124, 691130), (155, 552904), (206, 416020), (220, 389546), (244, 351230), (248, 345565), (305, 280984), (310, 276452), (341, 251320), (412, 208010), (440, 194773), (488, 175615), (515, 166408), (610, 140492), (620, 138226), (671, 127720), (682, 125660), (824, 104005), (1030, 83204), (1133, 75640), (1220, 70246), (1240, 69113), (1342, 63860), (1364, 62830), (1705, 50264), (1891, 45320), (2060, 41602), (2266, 37820), (2440, 35123), (2684, 31930), (2728, 31415), (3193, 26840), (3355, 25544), (3410, 25132), (3782, 22660), (4120, 20801), (4532, 18910), (5368, 15965), (5665, 15128), (6283, 13640), (6386, 13420), (6710, 12772), (6820, 12566), (7564, 11330), (9064, 9455)]