81943010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 162449280

約数和(自身を除く): 80506270

約数列:

[1, 2, 5, 10, 19, 38, 41, 67, 82, 95, 134, 157, 190, 205, 314, 335, 410, 670, 779, 785, 1273, 1558, 1570, 2546, 2747, 2983, 3895, 5494, 5966, 6365, 6437, 7790, 10519, 12730, 12874, 13735, 14915, 21038, 27470, 29830, 32185, 52193, 52595, 64370, 104386, 105190, 122303, 199861, 244606, 260965, 399722, 431279, 521930, 611515, 862558, 999305, 1223030, 1998610, 2156395, 4312790, 8194301, 16388602, 40971505, 81943010]

約数ペア:

[(1, 81943010), (2, 40971505), (5, 16388602), (10, 8194301), (19, 4312790), (38, 2156395), (41, 1998610), (67, 1223030), (82, 999305), (95, 862558), (134, 611515), (157, 521930), (190, 431279), (205, 399722), (314, 260965), (335, 244606), (410, 199861), (670, 122303), (779, 105190), (785, 104386), (1273, 64370), (1558, 52595), (1570, 52193), (2546, 32185), (2747, 29830), (2983, 27470), (3895, 21038), (5494, 14915), (5966, 13735), (6365, 12874), (6437, 12730), (7790, 10519)]