20164538690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1\times {\mathrm{3967}}^1$

素因数の和:4887

約数の個数: 64

約数和(自身を含む): 39494615040

約数和(自身を除く): 19330076350

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 863, 1178, 1726, 2945, 3967, 4315, 5890, 7934, 8630, 16397, 19835, 26753, 32794, 39670, 53506, 75373, 81985, 122977, 133765, 150746, 163970, 245954, 267530, 376865, 508307, 614885, 753730, 1016614, 1229770, 2336563, 2541535, 3423521, 4673126, 5083070, 6847042, 11682815, 17117605, 23365630, 34235210, 65046899, 106129151, 130093798, 212258302, 325234495, 530645755, 650468990, 1061291510, 2016453869, 4032907738, 10082269345, 20164538690]

約数ペア:

[(1, 20164538690), (2, 10082269345), (5, 4032907738), (10, 2016453869), (19, 1061291510), (31, 650468990), (38, 530645755), (62, 325234495), (95, 212258302), (155, 130093798), (190, 106129151), (310, 65046899), (589, 34235210), (863, 23365630), (1178, 17117605), (1726, 11682815), (2945, 6847042), (3967, 5083070), (4315, 4673126), (5890, 3423521), (7934, 2541535), (8630, 2336563), (16397, 1229770), (19835, 1016614), (26753, 753730), (32794, 614885), (39670, 508307), (53506, 376865), (75373, 267530), (81985, 245954), (122977, 163970), (133765, 150746)]