8618780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 19598880

約数和(自身を除く): 10980100

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 613, 703, 740, 1226, 1406, 2452, 2812, 3065, 3515, 6130, 7030, 11647, 12260, 14060, 22681, 23294, 45362, 46588, 58235, 90724, 113405, 116470, 226810, 232940, 430939, 453620, 861878, 1723756, 2154695, 4309390, 8618780]

約数ペア:

[(1, 8618780), (2, 4309390), (4, 2154695), (5, 1723756), (10, 861878), (19, 453620), (20, 430939), (37, 232940), (38, 226810), (74, 116470), (76, 113405), (95, 90724), (148, 58235), (185, 46588), (190, 45362), (370, 23294), (380, 22681), (613, 14060), (703, 12260), (740, 11647), (1226, 7030), (1406, 6130), (2452, 3515), (2812, 3065)]