20100153605

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{278917}}^1$

素因数の和:279029

約数の個数: 32

約数和(自身を含む): 28918218240

約数和(自身を除く): 8818064635

約数列:

[1, 5, 7, 29, 35, 71, 145, 203, 355, 497, 1015, 2059, 2485, 10295, 14413, 72065, 278917, 1394585, 1952419, 8088593, 9762095, 19803107, 40442965, 56620151, 99015535, 138621749, 283100755, 574290103, 693108745, 2871450515, 4020030721, 20100153605]

約数ペア:

[(1, 20100153605), (5, 4020030721), (7, 2871450515), (29, 693108745), (35, 574290103), (71, 283100755), (145, 138621749), (203, 99015535), (355, 56620151), (497, 40442965), (1015, 19803107), (2059, 9762095), (2485, 8088593), (10295, 1952419), (14413, 1394585), (72065, 278917)]