9999900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:332

約数の個数: 108

約数和(自身を含む): 32227104

約数和(自身を除く): 22227204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 41, 45, 50, 60, 75, 82, 90, 100, 123, 150, 164, 180, 205, 225, 246, 271, 300, 369, 410, 450, 492, 542, 615, 738, 813, 820, 900, 1025, 1084, 1230, 1355, 1476, 1626, 1845, 2050, 2439, 2460, 2710, 3075, 3252, 3690, 4065, 4100, 4878, 5420, 6150, 6775, 7380, 8130, 9225, 9756, 11111, 12195, 12300, 13550, 16260, 18450, 20325, 22222, 24390, 27100, 33333, 36900, 40650, 44444, 48780, 55555, 60975, 66666, 81300, 99999, 111110, 121950, 133332, 166665, 199998, 222220, 243900, 277775, 333330, 399996, 499995, 555550, 666660, 833325, 999990, 1111100, 1666650, 1999980, 2499975, 3333300, 4999950, 9999900]

約数ペア:

[(1, 9999900), (2, 4999950), (3, 3333300), (4, 2499975), (5, 1999980), (6, 1666650), (9, 1111100), (10, 999990), (12, 833325), (15, 666660), (18, 555550), (20, 499995), (25, 399996), (30, 333330), (36, 277775), (41, 243900), (45, 222220), (50, 199998), (60, 166665), (75, 133332), (82, 121950), (90, 111110), (100, 99999), (123, 81300), (150, 66666), (164, 60975), (180, 55555), (205, 48780), (225, 44444), (246, 40650), (271, 36900), (300, 33333), (369, 27100), (410, 24390), (450, 22222), (492, 20325), (542, 18450), (615, 16260), (738, 13550), (813, 12300), (820, 12195), (900, 11111), (1025, 9756), (1084, 9225), (1230, 8130), (1355, 7380), (1476, 6775), (1626, 6150), (1845, 5420), (2050, 4878), (2439, 4100), (2460, 4065), (2710, 3690), (3075, 3252)]