64642940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2539}}^1$

素因数の和:2634

約数の個数: 48

約数和(自身を含む): 145084800

約数和(自身を除く): 80441860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1273, 1340, 2539, 2546, 5078, 5092, 6365, 10156, 12695, 12730, 25390, 25460, 48241, 50780, 96482, 170113, 192964, 241205, 340226, 482410, 680452, 850565, 964820, 1701130, 3232147, 3402260, 6464294, 12928588, 16160735, 32321470, 64642940]

約数ペア:

[(1, 64642940), (2, 32321470), (4, 16160735), (5, 12928588), (10, 6464294), (19, 3402260), (20, 3232147), (38, 1701130), (67, 964820), (76, 850565), (95, 680452), (134, 482410), (190, 340226), (268, 241205), (335, 192964), (380, 170113), (670, 96482), (1273, 50780), (1340, 48241), (2539, 25460), (2546, 25390), (5078, 12730), (5092, 12695), (6365, 10156)]