399518748

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{977}}^1$

素因数の和:1331

約数の個数: 72

約数和(自身を含む): 1041632592

約数和(自身を除く): 642113844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 307, 333, 444, 614, 666, 921, 977, 1228, 1332, 1842, 1954, 2763, 2931, 3684, 3908, 5526, 5862, 8793, 11052, 11359, 11724, 17586, 22718, 34077, 35172, 36149, 45436, 68154, 72298, 102231, 108447, 136308, 144596, 204462, 216894, 299939, 325341, 408924, 433788, 599878, 650682, 899817, 1199756, 1301364, 1799634, 2699451, 3599268, 5398902, 10797804, 11097743, 22195486, 33293229, 44390972, 66586458, 99879687, 133172916, 199759374, 399518748]

約数ペア:

[(1, 399518748), (2, 199759374), (3, 133172916), (4, 99879687), (6, 66586458), (9, 44390972), (12, 33293229), (18, 22195486), (36, 11097743), (37, 10797804), (74, 5398902), (111, 3599268), (148, 2699451), (222, 1799634), (307, 1301364), (333, 1199756), (444, 899817), (614, 650682), (666, 599878), (921, 433788), (977, 408924), (1228, 325341), (1332, 299939), (1842, 216894), (1954, 204462), (2763, 144596), (2931, 136308), (3684, 108447), (3908, 102231), (5526, 72298), (5862, 68154), (8793, 45436), (11052, 36149), (11359, 35172), (11724, 34077), (17586, 22718)]