161977980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:939

約数の個数: 96

約数和(自身を含む): 470292480

約数和(自身を除く): 308314500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 71, 94, 141, 142, 188, 213, 235, 282, 284, 355, 426, 470, 564, 705, 710, 809, 852, 940, 1065, 1410, 1420, 1618, 2130, 2427, 2820, 3236, 3337, 4045, 4260, 4854, 6674, 8090, 9708, 10011, 12135, 13348, 16180, 16685, 20022, 24270, 33370, 38023, 40044, 48540, 50055, 57439, 66740, 76046, 100110, 114069, 114878, 152092, 172317, 190115, 200220, 228138, 229756, 287195, 344634, 380230, 456276, 570345, 574390, 689268, 760460, 861585, 1140690, 1148780, 1723170, 2281380, 2699633, 3446340, 5399266, 8098899, 10798532, 13498165, 16197798, 26996330, 32395596, 40494495, 53992660, 80988990, 161977980]

約数ペア:

[(1, 161977980), (2, 80988990), (3, 53992660), (4, 40494495), (5, 32395596), (6, 26996330), (10, 16197798), (12, 13498165), (15, 10798532), (20, 8098899), (30, 5399266), (47, 3446340), (60, 2699633), (71, 2281380), (94, 1723170), (141, 1148780), (142, 1140690), (188, 861585), (213, 760460), (235, 689268), (282, 574390), (284, 570345), (355, 456276), (426, 380230), (470, 344634), (564, 287195), (705, 229756), (710, 228138), (809, 200220), (852, 190115), (940, 172317), (1065, 152092), (1410, 114878), (1420, 114069), (1618, 100110), (2130, 76046), (2427, 66740), (2820, 57439), (3236, 50055), (3337, 48540), (4045, 40044), (4260, 38023), (4854, 33370), (6674, 24270), (8090, 20022), (9708, 16685), (10011, 16180), (12135, 13348)]