82221920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 144

約数和(自身を含む): 222009984

約数和(自身を除く): 139788064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 121, 124, 137, 155, 160, 176, 220, 242, 248, 274, 310, 341, 352, 440, 484, 496, 548, 605, 620, 682, 685, 880, 968, 992, 1096, 1210, 1240, 1364, 1370, 1507, 1705, 1760, 1936, 2192, 2420, 2480, 2728, 2740, 3014, 3410, 3751, 3872, 4247, 4384, 4840, 4960, 5456, 5480, 6028, 6820, 7502, 7535, 8494, 9680, 10912, 10960, 12056, 13640, 15004, 15070, 16577, 16988, 18755, 19360, 21235, 21920, 24112, 27280, 30008, 30140, 33154, 33976, 37510, 42470, 46717, 48224, 54560, 60016, 60280, 66308, 67952, 75020, 82885, 84940, 93434, 120032, 120560, 132616, 135904, 150040, 165770, 169880, 186868, 233585, 241120, 265232, 300080, 331540, 339760, 373736, 467170, 513887, 530464, 600160, 663080, 679520, 747472, 934340, 1027774, 1326160, 1494944, 1868680, 2055548, 2569435, 2652320, 3737360, 4111096, 5138870, 7474720, 8222192, 10277740, 16444384, 20555480, 41110960, 82221920]

約数ペア:

[(1, 82221920), (2, 41110960), (4, 20555480), (5, 16444384), (8, 10277740), (10, 8222192), (11, 7474720), (16, 5138870), (20, 4111096), (22, 3737360), (31, 2652320), (32, 2569435), (40, 2055548), (44, 1868680), (55, 1494944), (62, 1326160), (80, 1027774), (88, 934340), (110, 747472), (121, 679520), (124, 663080), (137, 600160), (155, 530464), (160, 513887), (176, 467170), (220, 373736), (242, 339760), (248, 331540), (274, 300080), (310, 265232), (341, 241120), (352, 233585), (440, 186868), (484, 169880), (496, 165770), (548, 150040), (605, 135904), (620, 132616), (682, 120560), (685, 120032), (880, 93434), (968, 84940), (992, 82885), (1096, 75020), (1210, 67952), (1240, 66308), (1364, 60280), (1370, 60016), (1507, 54560), (1705, 48224), (1760, 46717), (1936, 42470), (2192, 37510), (2420, 33976), (2480, 33154), (2728, 30140), (2740, 30008), (3014, 27280), (3410, 24112), (3751, 21920), (3872, 21235), (4247, 19360), (4384, 18755), (4840, 16988), (4960, 16577), (5456, 15070), (5480, 15004), (6028, 13640), (6820, 12056), (7502, 10960), (7535, 10912), (8494, 9680)]