78448125

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 153950720

約数和(自身を除く): 75502595

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 75, 105, 125, 129, 139, 175, 215, 301, 375, 417, 525, 625, 645, 695, 875, 903, 973, 1075, 1505, 1875, 2085, 2625, 2919, 3225, 3475, 4375, 4515, 4865, 5375, 5977, 7525, 10425, 13125, 14595, 16125, 17375, 17931, 22575, 24325, 26875, 29885, 37625, 41839, 52125, 72975, 80625, 86875, 89655, 112875, 121625, 125517, 149425, 188125, 209195, 260625, 364875, 448275, 564375, 608125, 627585, 747125, 1045975, 1824375, 2241375, 3137925, 3735625, 5229875, 11206875, 15689625, 26149375, 78448125]

約数ペア:

[(1, 78448125), (3, 26149375), (5, 15689625), (7, 11206875), (15, 5229875), (21, 3735625), (25, 3137925), (35, 2241375), (43, 1824375), (75, 1045975), (105, 747125), (125, 627585), (129, 608125), (139, 564375), (175, 448275), (215, 364875), (301, 260625), (375, 209195), (417, 188125), (525, 149425), (625, 125517), (645, 121625), (695, 112875), (875, 89655), (903, 86875), (973, 80625), (1075, 72975), (1505, 52125), (1875, 41839), (2085, 37625), (2625, 29885), (2919, 26875), (3225, 24325), (3475, 22575), (4375, 17931), (4515, 17375), (4865, 16125), (5375, 14595), (5977, 13125), (7525, 10425)]