2020168400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:877

約数の個数: 120

約数和(自身を含む): 5004888000

約数和(自身を除く): 2984719600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 199, 200, 205, 328, 398, 400, 410, 619, 656, 796, 820, 995, 1025, 1238, 1592, 1640, 1990, 2050, 2476, 3095, 3184, 3280, 3980, 4100, 4952, 4975, 6190, 7960, 8159, 8200, 9904, 9950, 12380, 15475, 15920, 16318, 16400, 19900, 24760, 25379, 30950, 32636, 39800, 40795, 49520, 50758, 61900, 65272, 79600, 81590, 101516, 123181, 123800, 126895, 130544, 163180, 203032, 203975, 246362, 247600, 253790, 326360, 406064, 407950, 492724, 507580, 615905, 634475, 652720, 815900, 985448, 1015160, 1231810, 1268950, 1631800, 1970896, 2030320, 2463620, 2537900, 3079525, 3263600, 4927240, 5050421, 5075800, 6159050, 9854480, 10100842, 10151600, 12318100, 20201684, 24636200, 25252105, 40403368, 49272400, 50504210, 80806736, 101008420, 126260525, 202016840, 252521050, 404033680, 505042100, 1010084200, 2020168400]

約数ペア:

[(1, 2020168400), (2, 1010084200), (4, 505042100), (5, 404033680), (8, 252521050), (10, 202016840), (16, 126260525), (20, 101008420), (25, 80806736), (40, 50504210), (41, 49272400), (50, 40403368), (80, 25252105), (82, 24636200), (100, 20201684), (164, 12318100), (199, 10151600), (200, 10100842), (205, 9854480), (328, 6159050), (398, 5075800), (400, 5050421), (410, 4927240), (619, 3263600), (656, 3079525), (796, 2537900), (820, 2463620), (995, 2030320), (1025, 1970896), (1238, 1631800), (1592, 1268950), (1640, 1231810), (1990, 1015160), (2050, 985448), (2476, 815900), (3095, 652720), (3184, 634475), (3280, 615905), (3980, 507580), (4100, 492724), (4952, 407950), (4975, 406064), (6190, 326360), (7960, 253790), (8159, 247600), (8200, 246362), (9904, 203975), (9950, 203032), (12380, 163180), (15475, 130544), (15920, 126895), (16318, 123800), (16400, 123181), (19900, 101516), (24760, 81590), (25379, 79600), (30950, 65272), (32636, 61900), (39800, 50758), (40795, 49520)]