20123258325

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{1327}}^1$

素因数の和:1571

約数の個数: 96

約数和(自身を含む): 35569152000

約数和(自身を除く): 15445893675

約数列:

[1, 3, 5, 15, 23, 25, 59, 69, 75, 115, 149, 177, 295, 345, 447, 575, 745, 885, 1327, 1357, 1475, 1725, 2235, 3427, 3725, 3981, 4071, 4425, 6635, 6785, 8791, 10281, 11175, 17135, 19905, 20355, 26373, 30521, 33175, 33925, 43955, 51405, 78293, 85675, 91563, 99525, 101775, 131865, 152605, 197723, 202193, 219775, 234879, 257025, 391465, 457815, 593169, 606579, 659325, 763025, 988615, 1010965, 1174395, 1800739, 1957325, 2289075, 2965845, 3032895, 4547629, 4943075, 5054825, 5402217, 5871975, 9003695, 11665657, 13642887, 14829225, 15164475, 22738145, 27011085, 34996971, 45018475, 58328285, 68214435, 113690725, 135055425, 174984855, 268310111, 291641425, 341072175, 804930333, 874924275, 1341550555, 4024651665, 6707752775, 20123258325]

約数ペア:

[(1, 20123258325), (3, 6707752775), (5, 4024651665), (15, 1341550555), (23, 874924275), (25, 804930333), (59, 341072175), (69, 291641425), (75, 268310111), (115, 174984855), (149, 135055425), (177, 113690725), (295, 68214435), (345, 58328285), (447, 45018475), (575, 34996971), (745, 27011085), (885, 22738145), (1327, 15164475), (1357, 14829225), (1475, 13642887), (1725, 11665657), (2235, 9003695), (3427, 5871975), (3725, 5402217), (3981, 5054825), (4071, 4943075), (4425, 4547629), (6635, 3032895), (6785, 2965845), (8791, 2289075), (10281, 1957325), (11175, 1800739), (17135, 1174395), (19905, 1010965), (20355, 988615), (26373, 763025), (30521, 659325), (33175, 606579), (33925, 593169), (43955, 457815), (51405, 391465), (78293, 257025), (85675, 234879), (91563, 219775), (99525, 202193), (101775, 197723), (131865, 152605)]