256999600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4493}}^1$

素因数の和:4535

約数の個数: 120

約数和(自身を含む): 725547312

約数和(自身を除く): 468547712

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 80, 88, 100, 104, 110, 130, 143, 176, 200, 208, 220, 260, 275, 286, 325, 400, 440, 520, 550, 572, 650, 715, 880, 1040, 1100, 1144, 1300, 1430, 2200, 2288, 2600, 2860, 3575, 4400, 4493, 5200, 5720, 7150, 8986, 11440, 14300, 17972, 22465, 28600, 35944, 44930, 49423, 57200, 58409, 71888, 89860, 98846, 112325, 116818, 179720, 197692, 224650, 233636, 247115, 292045, 359440, 395384, 449300, 467272, 494230, 584090, 642499, 790768, 898600, 934544, 988460, 1168180, 1235575, 1284998, 1460225, 1797200, 1976920, 2336360, 2471150, 2569996, 2920450, 3212495, 3953840, 4672720, 4942300, 5139992, 5840900, 6424990, 9884600, 10279984, 11681800, 12849980, 16062475, 19769200, 23363600, 25699960, 32124950, 51399920, 64249900, 128499800, 256999600]

約数ペア:

[(1, 256999600), (2, 128499800), (4, 64249900), (5, 51399920), (8, 32124950), (10, 25699960), (11, 23363600), (13, 19769200), (16, 16062475), (20, 12849980), (22, 11681800), (25, 10279984), (26, 9884600), (40, 6424990), (44, 5840900), (50, 5139992), (52, 4942300), (55, 4672720), (65, 3953840), (80, 3212495), (88, 2920450), (100, 2569996), (104, 2471150), (110, 2336360), (130, 1976920), (143, 1797200), (176, 1460225), (200, 1284998), (208, 1235575), (220, 1168180), (260, 988460), (275, 934544), (286, 898600), (325, 790768), (400, 642499), (440, 584090), (520, 494230), (550, 467272), (572, 449300), (650, 395384), (715, 359440), (880, 292045), (1040, 247115), (1100, 233636), (1144, 224650), (1300, 197692), (1430, 179720), (2200, 116818), (2288, 112325), (2600, 98846), (2860, 89860), (3575, 71888), (4400, 58409), (4493, 57200), (5200, 49423), (5720, 44930), (7150, 35944), (8986, 28600), (11440, 22465), (14300, 17972)]