7999400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 96

約数和(自身を含む): 20355840

約数和(自身を除く): 12356440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 37, 40, 46, 47, 50, 74, 92, 94, 100, 115, 148, 184, 185, 188, 200, 230, 235, 296, 370, 376, 460, 470, 575, 740, 851, 920, 925, 940, 1081, 1150, 1175, 1480, 1702, 1739, 1850, 1880, 2162, 2300, 2350, 3404, 3478, 3700, 4255, 4324, 4600, 4700, 5405, 6808, 6956, 7400, 8510, 8648, 8695, 9400, 10810, 13912, 17020, 17390, 21275, 21620, 27025, 34040, 34780, 39997, 42550, 43240, 43475, 54050, 69560, 79994, 85100, 86950, 108100, 159988, 170200, 173900, 199985, 216200, 319976, 347800, 399970, 799940, 999925, 1599880, 1999850, 3999700, 7999400]

約数ペア:

[(1, 7999400), (2, 3999700), (4, 1999850), (5, 1599880), (8, 999925), (10, 799940), (20, 399970), (23, 347800), (25, 319976), (37, 216200), (40, 199985), (46, 173900), (47, 170200), (50, 159988), (74, 108100), (92, 86950), (94, 85100), (100, 79994), (115, 69560), (148, 54050), (184, 43475), (185, 43240), (188, 42550), (200, 39997), (230, 34780), (235, 34040), (296, 27025), (370, 21620), (376, 21275), (460, 17390), (470, 17020), (575, 13912), (740, 10810), (851, 9400), (920, 8695), (925, 8648), (940, 8510), (1081, 7400), (1150, 6956), (1175, 6808), (1480, 5405), (1702, 4700), (1739, 4600), (1850, 4324), (1880, 4255), (2162, 3700), (2300, 3478), (2350, 3404)]