31495156940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1\times {\mathrm{159179}}^1$

素因数の和:159962

約数の個数: 48

約数和(自身を含む): 71321554080

約数和(自身を除く): 39826397140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 761, 1522, 3044, 3805, 7610, 9893, 15220, 19786, 39572, 49465, 98930, 159179, 197860, 318358, 636716, 795895, 1591790, 2069327, 3183580, 4138654, 8277308, 10346635, 20693270, 41386540, 121135219, 242270438, 484540876, 605676095, 1211352190, 1574757847, 2422704380, 3149515694, 6299031388, 7873789235, 15747578470, 31495156940]

約数ペア:

[(1, 31495156940), (2, 15747578470), (4, 7873789235), (5, 6299031388), (10, 3149515694), (13, 2422704380), (20, 1574757847), (26, 1211352190), (52, 605676095), (65, 484540876), (130, 242270438), (260, 121135219), (761, 41386540), (1522, 20693270), (3044, 10346635), (3805, 8277308), (7610, 4138654), (9893, 3183580), (15220, 2069327), (19786, 1591790), (39572, 795895), (49465, 636716), (98930, 318358), (159179, 197860)]