2019890890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1\times {\mathrm{28901}}^1$

素因数の和:29178

約数の個数: 32

約数和(自身を含む): 3776913360

約数和(自身を除く): 1757022470

約数列:

[1, 2, 5, 10, 29, 58, 145, 241, 290, 482, 1205, 2410, 6989, 13978, 28901, 34945, 57802, 69890, 144505, 289010, 838129, 1676258, 4190645, 6965141, 8381290, 13930282, 34825705, 69651410, 201989089, 403978178, 1009945445, 2019890890]

約数ペア:

[(1, 2019890890), (2, 1009945445), (5, 403978178), (10, 201989089), (29, 69651410), (58, 34825705), (145, 13930282), (241, 8381290), (290, 6965141), (482, 4190645), (1205, 1676258), (2410, 838129), (6989, 289010), (13978, 144505), (28901, 69890), (34945, 57802)]