39826280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 128

約数和(自身を含む): 105840000

約数和(自身を除く): 66013720

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 29, 38, 40, 52, 58, 65, 76, 95, 104, 116, 130, 139, 145, 152, 190, 232, 247, 260, 278, 290, 377, 380, 494, 520, 551, 556, 580, 695, 754, 760, 988, 1102, 1112, 1160, 1235, 1390, 1508, 1807, 1885, 1976, 2204, 2470, 2641, 2755, 2780, 3016, 3614, 3770, 4031, 4408, 4940, 5282, 5510, 5560, 7163, 7228, 7540, 8062, 9035, 9880, 10564, 11020, 13205, 14326, 14456, 15080, 16124, 18070, 20155, 21128, 22040, 26410, 28652, 32248, 34333, 35815, 36140, 40310, 52403, 52820, 57304, 68666, 71630, 72280, 76589, 80620, 104806, 105640, 137332, 143260, 153178, 161240, 171665, 209612, 262015, 274664, 286520, 306356, 343330, 382945, 419224, 524030, 612712, 686660, 765890, 995657, 1048060, 1373320, 1531780, 1991314, 2096120, 3063560, 3982628, 4978285, 7965256, 9956570, 19913140, 39826280]

約数ペア:

[(1, 39826280), (2, 19913140), (4, 9956570), (5, 7965256), (8, 4978285), (10, 3982628), (13, 3063560), (19, 2096120), (20, 1991314), (26, 1531780), (29, 1373320), (38, 1048060), (40, 995657), (52, 765890), (58, 686660), (65, 612712), (76, 524030), (95, 419224), (104, 382945), (116, 343330), (130, 306356), (139, 286520), (145, 274664), (152, 262015), (190, 209612), (232, 171665), (247, 161240), (260, 153178), (278, 143260), (290, 137332), (377, 105640), (380, 104806), (494, 80620), (520, 76589), (551, 72280), (556, 71630), (580, 68666), (695, 57304), (754, 52820), (760, 52403), (988, 40310), (1102, 36140), (1112, 35815), (1160, 34333), (1235, 32248), (1390, 28652), (1508, 26410), (1807, 22040), (1885, 21128), (1976, 20155), (2204, 18070), (2470, 16124), (2641, 15080), (2755, 14456), (2780, 14326), (3016, 13205), (3614, 11020), (3770, 10564), (4031, 9880), (4408, 9035), (4940, 8062), (5282, 7540), (5510, 7228), (5560, 7163)]