19468049375

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{4373}}^1$

素因数の和:4829

約数の個数: 40

約数和(自身を含む): 25825670640

約数和(自身を除く): 6357621265

約数列:

[1, 5, 17, 25, 85, 125, 419, 425, 625, 2095, 2125, 4373, 7123, 10475, 10625, 21865, 35615, 52375, 74341, 109325, 178075, 261875, 371705, 546625, 890375, 1832287, 1858525, 2733125, 4451875, 9161435, 9292625, 31148879, 45807175, 46463125, 155744395, 229035875, 778721975, 1145179375, 3893609875, 19468049375]

約数ペア:

[(1, 19468049375), (5, 3893609875), (17, 1145179375), (25, 778721975), (85, 229035875), (125, 155744395), (419, 46463125), (425, 45807175), (625, 31148879), (2095, 9292625), (2125, 9161435), (4373, 4451875), (7123, 2733125), (10475, 1858525), (10625, 1832287), (21865, 890375), (35615, 546625), (52375, 371705), (74341, 261875), (109325, 178075)]