388412500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 1018434816

約数和(自身を除く): 630022316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 125, 140, 161, 175, 193, 230, 250, 322, 350, 386, 460, 500, 575, 625, 644, 700, 772, 805, 875, 965, 1150, 1250, 1351, 1610, 1750, 1930, 2300, 2500, 2702, 2875, 3125, 3220, 3500, 3860, 4025, 4375, 4439, 4825, 5404, 5750, 6250, 6755, 8050, 8750, 8878, 9650, 11500, 12500, 13510, 14375, 16100, 17500, 17756, 19300, 20125, 21875, 22195, 24125, 27020, 28750, 31073, 33775, 40250, 43750, 44390, 48250, 57500, 62146, 67550, 71875, 80500, 87500, 88780, 96500, 100625, 110975, 120625, 124292, 135100, 143750, 155365, 168875, 201250, 221950, 241250, 287500, 310730, 337750, 402500, 443900, 482500, 503125, 554875, 603125, 621460, 675500, 776825, 844375, 1006250, 1109750, 1206250, 1553650, 1688750, 2012500, 2219500, 2412500, 2774375, 3107300, 3377500, 3884125, 4221875, 5548750, 7768250, 8443750, 11097500, 13871875, 15536500, 16887500, 19420625, 27743750, 38841250, 55487500, 77682500, 97103125, 194206250, 388412500]

約数ペア:

[(1, 388412500), (2, 194206250), (4, 97103125), (5, 77682500), (7, 55487500), (10, 38841250), (14, 27743750), (20, 19420625), (23, 16887500), (25, 15536500), (28, 13871875), (35, 11097500), (46, 8443750), (50, 7768250), (70, 5548750), (92, 4221875), (100, 3884125), (115, 3377500), (125, 3107300), (140, 2774375), (161, 2412500), (175, 2219500), (193, 2012500), (230, 1688750), (250, 1553650), (322, 1206250), (350, 1109750), (386, 1006250), (460, 844375), (500, 776825), (575, 675500), (625, 621460), (644, 603125), (700, 554875), (772, 503125), (805, 482500), (875, 443900), (965, 402500), (1150, 337750), (1250, 310730), (1351, 287500), (1610, 241250), (1750, 221950), (1930, 201250), (2300, 168875), (2500, 155365), (2702, 143750), (2875, 135100), (3125, 124292), (3220, 120625), (3500, 110975), (3860, 100625), (4025, 96500), (4375, 88780), (4439, 87500), (4825, 80500), (5404, 71875), (5750, 67550), (6250, 62146), (6755, 57500), (8050, 48250), (8750, 44390), (8878, 43750), (9650, 40250), (11500, 33775), (12500, 31073), (13510, 28750), (14375, 27020), (16100, 24125), (17500, 22195), (17756, 21875), (19300, 20125)]