20105879800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{4243}}^1$

素因数の和:4350

約数の個数: 192

約数和(自身を含む): 52099344000

約数和(自身を除く): 31993464200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 29, 38, 40, 43, 50, 58, 76, 86, 95, 100, 116, 145, 152, 172, 190, 200, 215, 232, 290, 344, 380, 430, 475, 551, 580, 725, 760, 817, 860, 950, 1075, 1102, 1160, 1247, 1450, 1634, 1720, 1900, 2150, 2204, 2494, 2755, 2900, 3268, 3800, 4085, 4243, 4300, 4408, 4988, 5510, 5800, 6235, 6536, 8170, 8486, 8600, 9976, 11020, 12470, 13775, 16340, 16972, 20425, 21215, 22040, 23693, 24940, 27550, 31175, 32680, 33944, 40850, 42430, 47386, 49880, 55100, 62350, 80617, 81700, 84860, 94772, 106075, 110200, 118465, 123047, 124700, 161234, 163400, 169720, 182449, 189544, 212150, 236930, 246094, 249400, 322468, 364898, 403085, 424300, 473860, 492188, 592325, 615235, 644936, 729796, 806170, 848600, 912245, 947720, 984376, 1184650, 1230470, 1459592, 1612340, 1824490, 2015425, 2337893, 2369300, 2460940, 3076175, 3224680, 3466531, 3648980, 4030850, 4561225, 4675786, 4738600, 4921880, 5291021, 6152350, 6933062, 7297960, 8061700, 9122450, 9351572, 10582042, 11689465, 12304700, 13866124, 16123400, 17332655, 18244900, 18703144, 21164084, 23378930, 24609400, 26455105, 27732248, 34665310, 36489800, 42328168, 46757860, 52910210, 58447325, 69330620, 86663275, 93515720, 100529399, 105820420, 116894650, 132275525, 138661240, 173326550, 201058798, 211640840, 233789300, 264551050, 346653100, 402117596, 467578600, 502646995, 529102100, 693306200, 804235192, 1005293990, 1058204200, 2010587980, 2513234975, 4021175960, 5026469950, 10052939900, 20105879800]

約数ペア:

[(1, 20105879800), (2, 10052939900), (4, 5026469950), (5, 4021175960), (8, 2513234975), (10, 2010587980), (19, 1058204200), (20, 1005293990), (25, 804235192), (29, 693306200), (38, 529102100), (40, 502646995), (43, 467578600), (50, 402117596), (58, 346653100), (76, 264551050), (86, 233789300), (95, 211640840), (100, 201058798), (116, 173326550), (145, 138661240), (152, 132275525), (172, 116894650), (190, 105820420), (200, 100529399), (215, 93515720), (232, 86663275), (290, 69330620), (344, 58447325), (380, 52910210), (430, 46757860), (475, 42328168), (551, 36489800), (580, 34665310), (725, 27732248), (760, 26455105), (817, 24609400), (860, 23378930), (950, 21164084), (1075, 18703144), (1102, 18244900), (1160, 17332655), (1247, 16123400), (1450, 13866124), (1634, 12304700), (1720, 11689465), (1900, 10582042), (2150, 9351572), (2204, 9122450), (2494, 8061700), (2755, 7297960), (2900, 6933062), (3268, 6152350), (3800, 5291021), (4085, 4921880), (4243, 4738600), (4300, 4675786), (4408, 4561225), (4988, 4030850), (5510, 3648980), (5800, 3466531), (6235, 3224680), (6536, 3076175), (8170, 2460940), (8486, 2369300), (8600, 2337893), (9976, 2015425), (11020, 1824490), (12470, 1612340), (13775, 1459592), (16340, 1230470), (16972, 1184650), (20425, 984376), (21215, 947720), (22040, 912245), (23693, 848600), (24940, 806170), (27550, 729796), (31175, 644936), (32680, 615235), (33944, 592325), (40850, 492188), (42430, 473860), (47386, 424300), (49880, 403085), (55100, 364898), (62350, 322468), (80617, 249400), (81700, 246094), (84860, 236930), (94772, 212150), (106075, 189544), (110200, 182449), (118465, 169720), (123047, 163400), (124700, 161234)]