18216297520

素因数分解:

$2^4\times 5^1\times {\mathrm{6761}}^1\times {\mathrm{33679}}^1$

素因数の和:40453

約数の個数: 40

約数和(自身を含む): 42360413760

約数和(自身を除く): 24144116240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6761, 13522, 27044, 33679, 33805, 54088, 67358, 67610, 108176, 134716, 135220, 168395, 269432, 270440, 336790, 538864, 540880, 673580, 1347160, 2694320, 227703719, 455407438, 910814876, 1138518595, 1821629752, 2277037190, 3643259504, 4554074380, 9108148760, 18216297520]

約数ペア:

[(1, 18216297520), (2, 9108148760), (4, 4554074380), (5, 3643259504), (8, 2277037190), (10, 1821629752), (16, 1138518595), (20, 910814876), (40, 455407438), (80, 227703719), (6761, 2694320), (13522, 1347160), (27044, 673580), (33679, 540880), (33805, 538864), (54088, 336790), (67358, 270440), (67610, 269432), (108176, 168395), (134716, 135220)]