20454969730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1709}}^1\times {\mathrm{4003}}^1$

素因数の和:5755

約数の個数: 64

約数和(自身を含む): 41409688320

約数和(自身を除く): 20954718590

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 1709, 2990, 3418, 4003, 8006, 8545, 17090, 20015, 22217, 39307, 40030, 44434, 52039, 78614, 92069, 104078, 111085, 184138, 196535, 222170, 260195, 393070, 460345, 510991, 520390, 920690, 1021982, 1196897, 2393794, 2554955, 5109910, 5984485, 6841127, 11968970, 13682254, 34205635, 68411270, 88934651, 157345921, 177869302, 314691842, 444673255, 786729605, 889346510, 1573459210, 2045496973, 4090993946, 10227484865, 20454969730]

約数ペア:

[(1, 20454969730), (2, 10227484865), (5, 4090993946), (10, 2045496973), (13, 1573459210), (23, 889346510), (26, 786729605), (46, 444673255), (65, 314691842), (115, 177869302), (130, 157345921), (230, 88934651), (299, 68411270), (598, 34205635), (1495, 13682254), (1709, 11968970), (2990, 6841127), (3418, 5984485), (4003, 5109910), (8006, 2554955), (8545, 2393794), (17090, 1196897), (20015, 1021982), (22217, 920690), (39307, 520390), (40030, 510991), (44434, 460345), (52039, 393070), (78614, 260195), (92069, 222170), (104078, 196535), (111085, 184138)]