161808220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1691

約数の個数: 96

約数和(自身を含む): 418553856

約数和(自身を除く): 256745636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 713, 805, 868, 1085, 1426, 1610, 1621, 2170, 2852, 3220, 3242, 3565, 4340, 4991, 6484, 7130, 8105, 9982, 11347, 14260, 16210, 19964, 22694, 24955, 32420, 37283, 45388, 49910, 50251, 56735, 74566, 99820, 100502, 113470, 149132, 186415, 201004, 226940, 251255, 260981, 351757, 372830, 502510, 521962, 703514, 745660, 1005020, 1043924, 1155773, 1304905, 1407028, 1758785, 2311546, 2609810, 3517570, 4623092, 5219620, 5778865, 7035140, 8090411, 11557730, 16180822, 23115460, 32361644, 40452055, 80904110, 161808220]

約数ペア:

[(1, 161808220), (2, 80904110), (4, 40452055), (5, 32361644), (7, 23115460), (10, 16180822), (14, 11557730), (20, 8090411), (23, 7035140), (28, 5778865), (31, 5219620), (35, 4623092), (46, 3517570), (62, 2609810), (70, 2311546), (92, 1758785), (115, 1407028), (124, 1304905), (140, 1155773), (155, 1043924), (161, 1005020), (217, 745660), (230, 703514), (310, 521962), (322, 502510), (434, 372830), (460, 351757), (620, 260981), (644, 251255), (713, 226940), (805, 201004), (868, 186415), (1085, 149132), (1426, 113470), (1610, 100502), (1621, 99820), (2170, 74566), (2852, 56735), (3220, 50251), (3242, 49910), (3565, 45388), (4340, 37283), (4991, 32420), (6484, 24955), (7130, 22694), (8105, 19964), (9982, 16210), (11347, 14260)]