890491000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5531}}^1$

素因数の和:5582

約数の個数: 128

約数和(自身を含む): 2485416960

約数和(自身を除く): 1594925960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 92, 100, 115, 125, 140, 161, 175, 184, 200, 230, 250, 280, 322, 350, 460, 500, 575, 644, 700, 805, 875, 920, 1000, 1150, 1288, 1400, 1610, 1750, 2300, 2875, 3220, 3500, 4025, 4600, 5531, 5750, 6440, 7000, 8050, 11062, 11500, 16100, 20125, 22124, 23000, 27655, 32200, 38717, 40250, 44248, 55310, 77434, 80500, 110620, 127213, 138275, 154868, 161000, 193585, 221240, 254426, 276550, 309736, 387170, 508852, 553100, 636065, 691375, 774340, 890491, 967925, 1017704, 1106200, 1272130, 1382750, 1548680, 1780982, 1935850, 2544260, 2765500, 3180325, 3561964, 3871700, 4452455, 4839625, 5088520, 5531000, 6360650, 7123928, 7743400, 8904910, 9679250, 12721300, 15901625, 17809820, 19358500, 22262275, 25442600, 31803250, 35619640, 38717000, 44524550, 63606500, 89049100, 111311375, 127213000, 178098200, 222622750, 445245500, 890491000]

約数ペア:

[(1, 890491000), (2, 445245500), (4, 222622750), (5, 178098200), (7, 127213000), (8, 111311375), (10, 89049100), (14, 63606500), (20, 44524550), (23, 38717000), (25, 35619640), (28, 31803250), (35, 25442600), (40, 22262275), (46, 19358500), (50, 17809820), (56, 15901625), (70, 12721300), (92, 9679250), (100, 8904910), (115, 7743400), (125, 7123928), (140, 6360650), (161, 5531000), (175, 5088520), (184, 4839625), (200, 4452455), (230, 3871700), (250, 3561964), (280, 3180325), (322, 2765500), (350, 2544260), (460, 1935850), (500, 1780982), (575, 1548680), (644, 1382750), (700, 1272130), (805, 1106200), (875, 1017704), (920, 967925), (1000, 890491), (1150, 774340), (1288, 691375), (1400, 636065), (1610, 553100), (1750, 508852), (2300, 387170), (2875, 309736), (3220, 276550), (3500, 254426), (4025, 221240), (4600, 193585), (5531, 161000), (5750, 154868), (6440, 138275), (7000, 127213), (8050, 110620), (11062, 80500), (11500, 77434), (16100, 55310), (20125, 44248), (22124, 40250), (23000, 38717), (27655, 32200)]