17961298420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{220709}}^1$

素因数の和:221044

約数の個数: 48

約数和(自身を含む): 40750128720

約数和(自身を除く): 22788830300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313, 626, 1252, 1565, 3130, 4069, 6260, 8138, 16276, 20345, 40690, 81380, 220709, 441418, 882836, 1103545, 2207090, 2869217, 4414180, 5738434, 11476868, 14346085, 28692170, 57384340, 69081917, 138163834, 276327668, 345409585, 690819170, 898064921, 1381638340, 1796129842, 3592259684, 4490324605, 8980649210, 17961298420]

約数ペア:

[(1, 17961298420), (2, 8980649210), (4, 4490324605), (5, 3592259684), (10, 1796129842), (13, 1381638340), (20, 898064921), (26, 690819170), (52, 345409585), (65, 276327668), (130, 138163834), (260, 69081917), (313, 57384340), (626, 28692170), (1252, 14346085), (1565, 11476868), (3130, 5738434), (4069, 4414180), (6260, 2869217), (8138, 2207090), (16276, 1103545), (20345, 882836), (40690, 441418), (81380, 220709)]