278377830

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:547

約数の個数: 128

約数和(自身を含む): 777830400

約数和(自身を除く): 499452570

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 79, 90, 93, 135, 155, 158, 186, 237, 270, 279, 310, 395, 421, 465, 474, 558, 711, 790, 837, 842, 930, 1185, 1263, 1395, 1422, 1674, 2105, 2133, 2370, 2449, 2526, 2790, 3555, 3789, 4185, 4210, 4266, 4898, 6315, 7110, 7347, 7578, 8370, 10665, 11367, 12245, 12630, 13051, 14694, 18945, 21330, 22041, 22734, 24490, 26102, 33259, 36735, 37890, 39153, 44082, 56835, 65255, 66123, 66518, 73470, 78306, 99777, 110205, 113670, 117459, 130510, 132246, 166295, 195765, 199554, 220410, 234918, 299331, 330615, 332590, 352377, 391530, 498885, 587295, 598662, 661230, 704754, 897993, 997770, 1031029, 1174590, 1496655, 1761885, 1795986, 2062058, 2993310, 3093087, 3523770, 4489965, 5155145, 6186174, 8979930, 9279261, 10310290, 15465435, 18558522, 27837783, 30930870, 46396305, 55675566, 92792610, 139188915, 278377830]

約数ペア:

[(1, 278377830), (2, 139188915), (3, 92792610), (5, 55675566), (6, 46396305), (9, 30930870), (10, 27837783), (15, 18558522), (18, 15465435), (27, 10310290), (30, 9279261), (31, 8979930), (45, 6186174), (54, 5155145), (62, 4489965), (79, 3523770), (90, 3093087), (93, 2993310), (135, 2062058), (155, 1795986), (158, 1761885), (186, 1496655), (237, 1174590), (270, 1031029), (279, 997770), (310, 897993), (395, 704754), (421, 661230), (465, 598662), (474, 587295), (558, 498885), (711, 391530), (790, 352377), (837, 332590), (842, 330615), (930, 299331), (1185, 234918), (1263, 220410), (1395, 199554), (1422, 195765), (1674, 166295), (2105, 132246), (2133, 130510), (2370, 117459), (2449, 113670), (2526, 110205), (2790, 99777), (3555, 78306), (3789, 73470), (4185, 66518), (4210, 66123), (4266, 65255), (4898, 56835), (6315, 44082), (7110, 39153), (7347, 37890), (7578, 36735), (8370, 33259), (10665, 26102), (11367, 24490), (12245, 22734), (12630, 22041), (13051, 21330), (14694, 18945)]