2020654400

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{40739}}^1$

素因数の和:40792

約数の個数: 84

約数和(自身を含む): 5132588160

約数和(自身を除く): 3111933760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 200, 248, 310, 320, 400, 496, 620, 775, 800, 992, 1240, 1550, 1600, 1984, 2480, 3100, 4960, 6200, 9920, 12400, 24800, 40739, 49600, 81478, 162956, 203695, 325912, 407390, 651824, 814780, 1018475, 1262909, 1303648, 1629560, 2036950, 2525818, 2607296, 3259120, 4073900, 5051636, 6314545, 6518240, 8147800, 10103272, 12629090, 13036480, 16295600, 20206544, 25258180, 31572725, 32591200, 40413088, 50516360, 63145450, 65182400, 80826176, 101032720, 126290900, 202065440, 252581800, 404130880, 505163600, 1010327200, 2020654400]

約数ペア:

[(1, 2020654400), (2, 1010327200), (4, 505163600), (5, 404130880), (8, 252581800), (10, 202065440), (16, 126290900), (20, 101032720), (25, 80826176), (31, 65182400), (32, 63145450), (40, 50516360), (50, 40413088), (62, 32591200), (64, 31572725), (80, 25258180), (100, 20206544), (124, 16295600), (155, 13036480), (160, 12629090), (200, 10103272), (248, 8147800), (310, 6518240), (320, 6314545), (400, 5051636), (496, 4073900), (620, 3259120), (775, 2607296), (800, 2525818), (992, 2036950), (1240, 1629560), (1550, 1303648), (1600, 1262909), (1984, 1018475), (2480, 814780), (3100, 651824), (4960, 407390), (6200, 325912), (9920, 203695), (12400, 162956), (24800, 81478), (40739, 49600)]