28101990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{2731}}^1$

素因数の和:2762

約数の個数: 64

約数和(自身を含む): 78681600

約数和(自身を除く): 50579610

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 1029, 1470, 1715, 2058, 2731, 3430, 5145, 5462, 8193, 10290, 13655, 16386, 19117, 27310, 38234, 40965, 57351, 81930, 95585, 114702, 133819, 191170, 267638, 286755, 401457, 573510, 669095, 802914, 936733, 1338190, 1873466, 2007285, 2810199, 4014570, 4683665, 5620398, 9367330, 14050995, 28101990]

約数ペア:

[(1, 28101990), (2, 14050995), (3, 9367330), (5, 5620398), (6, 4683665), (7, 4014570), (10, 2810199), (14, 2007285), (15, 1873466), (21, 1338190), (30, 936733), (35, 802914), (42, 669095), (49, 573510), (70, 401457), (98, 286755), (105, 267638), (147, 191170), (210, 133819), (245, 114702), (294, 95585), (343, 81930), (490, 57351), (686, 40965), (735, 38234), (1029, 27310), (1470, 19117), (1715, 16386), (2058, 13655), (2731, 10290), (3430, 8193), (5145, 5462)]