28103610125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{1531}}^1$

素因数の和:1755

約数の個数: 64

約数和(自身を含む): 37856332800

約数和(自身を除く): 9752722675

約数列:

[1, 5, 19, 25, 59, 95, 125, 131, 295, 475, 655, 1121, 1475, 1531, 2375, 2489, 3275, 5605, 7375, 7655, 7729, 12445, 16375, 28025, 29089, 38275, 38645, 62225, 90329, 140125, 145445, 146851, 191375, 193225, 200561, 311125, 451645, 727225, 734255, 966125, 1002805, 1716251, 2258225, 3636125, 3671275, 3810659, 5014025, 8581255, 11291125, 11833099, 18356375, 19053295, 25070125, 42906275, 59165495, 95266475, 214531375, 224828881, 295827475, 476332375, 1124144405, 1479137375, 5620722025, 28103610125]

約数ペア:

[(1, 28103610125), (5, 5620722025), (19, 1479137375), (25, 1124144405), (59, 476332375), (95, 295827475), (125, 224828881), (131, 214531375), (295, 95266475), (475, 59165495), (655, 42906275), (1121, 25070125), (1475, 19053295), (1531, 18356375), (2375, 11833099), (2489, 11291125), (3275, 8581255), (5605, 5014025), (7375, 3810659), (7655, 3671275), (7729, 3636125), (12445, 2258225), (16375, 1716251), (28025, 1002805), (29089, 966125), (38275, 734255), (38645, 727225), (62225, 451645), (90329, 311125), (140125, 200561), (145445, 193225), (146851, 191375)]