81042400

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 144

約数和(自身を含む): 215142480

約数和(自身を除く): 134100080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 59, 68, 80, 85, 100, 101, 118, 136, 160, 170, 200, 202, 236, 272, 295, 340, 400, 404, 425, 472, 505, 544, 590, 680, 800, 808, 850, 944, 1003, 1010, 1180, 1360, 1475, 1616, 1700, 1717, 1888, 2006, 2020, 2360, 2525, 2720, 2950, 3232, 3400, 3434, 4012, 4040, 4720, 5015, 5050, 5900, 5959, 6800, 6868, 8024, 8080, 8585, 9440, 10030, 10100, 11800, 11918, 13600, 13736, 16048, 16160, 17170, 20060, 20200, 23600, 23836, 25075, 27472, 29795, 32096, 34340, 40120, 40400, 42925, 47200, 47672, 50150, 54944, 59590, 68680, 80240, 80800, 85850, 95344, 100300, 101303, 119180, 137360, 148975, 160480, 171700, 190688, 200600, 202606, 238360, 274720, 297950, 343400, 401200, 405212, 476720, 506515, 595900, 686800, 802400, 810424, 953440, 1013030, 1191800, 1373600, 1620848, 2026060, 2383600, 2532575, 3241696, 4052120, 4767200, 5065150, 8104240, 10130300, 16208480, 20260600, 40521200, 81042400]

約数ペア:

[(1, 81042400), (2, 40521200), (4, 20260600), (5, 16208480), (8, 10130300), (10, 8104240), (16, 5065150), (17, 4767200), (20, 4052120), (25, 3241696), (32, 2532575), (34, 2383600), (40, 2026060), (50, 1620848), (59, 1373600), (68, 1191800), (80, 1013030), (85, 953440), (100, 810424), (101, 802400), (118, 686800), (136, 595900), (160, 506515), (170, 476720), (200, 405212), (202, 401200), (236, 343400), (272, 297950), (295, 274720), (340, 238360), (400, 202606), (404, 200600), (425, 190688), (472, 171700), (505, 160480), (544, 148975), (590, 137360), (680, 119180), (800, 101303), (808, 100300), (850, 95344), (944, 85850), (1003, 80800), (1010, 80240), (1180, 68680), (1360, 59590), (1475, 54944), (1616, 50150), (1700, 47672), (1717, 47200), (1888, 42925), (2006, 40400), (2020, 40120), (2360, 34340), (2525, 32096), (2720, 29795), (2950, 27472), (3232, 25075), (3400, 23836), (3434, 23600), (4012, 20200), (4040, 20060), (4720, 17170), (5015, 16160), (5050, 16048), (5900, 13736), (5959, 13600), (6800, 11918), (6868, 11800), (8024, 10100), (8080, 10030), (8585, 9440)]