20181272965

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1\times {\mathrm{20261}}^1$

素因数の和:20613

約数の個数: 32

約数和(自身を含む): 28010188800

約数和(自身を除く): 7828915835

約数列:

[1, 5, 7, 35, 149, 191, 745, 955, 1043, 1337, 5215, 6685, 20261, 28459, 101305, 141827, 142295, 199213, 709135, 996065, 3018889, 3869851, 15094445, 19349255, 21132223, 27088957, 105661115, 135444785, 576607799, 2883038995, 4036254593, 20181272965]

約数ペア:

[(1, 20181272965), (5, 4036254593), (7, 2883038995), (35, 576607799), (149, 135444785), (191, 105661115), (745, 27088957), (955, 21132223), (1043, 19349255), (1337, 15094445), (5215, 3869851), (6685, 3018889), (20261, 996065), (28459, 709135), (101305, 199213), (141827, 142295)]