1817661200

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{809}}^1$

素因数の和:1005

約数の個数: 120

約数和(自身を含む): 4511664360

約数和(自身を除く): 2694003160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 137, 164, 200, 205, 274, 328, 400, 410, 548, 656, 685, 809, 820, 1025, 1096, 1370, 1618, 1640, 2050, 2192, 2740, 3236, 3280, 3425, 4045, 4100, 5480, 5617, 6472, 6850, 8090, 8200, 10960, 11234, 12944, 13700, 16180, 16400, 20225, 22468, 27400, 28085, 32360, 33169, 40450, 44936, 54800, 56170, 64720, 66338, 80900, 89872, 110833, 112340, 132676, 140425, 161800, 165845, 221666, 224680, 265352, 280850, 323600, 331690, 443332, 449360, 530704, 554165, 561700, 663380, 829225, 886664, 1108330, 1123400, 1326760, 1658450, 1773328, 2216660, 2246800, 2653520, 2770825, 3316900, 4433320, 4544153, 5541650, 6633800, 8866640, 9088306, 11083300, 13267600, 18176612, 22166600, 22720765, 36353224, 44333200, 45441530, 72706448, 90883060, 113603825, 181766120, 227207650, 363532240, 454415300, 908830600, 1817661200]

約数ペア:

[(1, 1817661200), (2, 908830600), (4, 454415300), (5, 363532240), (8, 227207650), (10, 181766120), (16, 113603825), (20, 90883060), (25, 72706448), (40, 45441530), (41, 44333200), (50, 36353224), (80, 22720765), (82, 22166600), (100, 18176612), (137, 13267600), (164, 11083300), (200, 9088306), (205, 8866640), (274, 6633800), (328, 5541650), (400, 4544153), (410, 4433320), (548, 3316900), (656, 2770825), (685, 2653520), (809, 2246800), (820, 2216660), (1025, 1773328), (1096, 1658450), (1370, 1326760), (1618, 1123400), (1640, 1108330), (2050, 886664), (2192, 829225), (2740, 663380), (3236, 561700), (3280, 554165), (3425, 530704), (4045, 449360), (4100, 443332), (5480, 331690), (5617, 323600), (6472, 280850), (6850, 265352), (8090, 224680), (8200, 221666), (10960, 165845), (11234, 161800), (12944, 140425), (13700, 132676), (16180, 112340), (16400, 110833), (20225, 89872), (22468, 80900), (27400, 66338), (28085, 64720), (32360, 56170), (33169, 54800), (40450, 44936)]