389631405

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 668860416

約数和(自身を除く): 279229011

約数列:

[1, 3, 5, 15, 31, 41, 93, 107, 123, 155, 191, 205, 321, 465, 535, 573, 615, 955, 1271, 1605, 2865, 3317, 3813, 4387, 5921, 6355, 7831, 9951, 13161, 16585, 17763, 19065, 20437, 21935, 23493, 29605, 39155, 49755, 61311, 65805, 88815, 102185, 117465, 135997, 242761, 306555, 407991, 633547, 679985, 728283, 837917, 1213805, 1900641, 2039955, 2513751, 3167735, 3641415, 4189585, 9503205, 12568755, 25975427, 77926281, 129877135, 389631405]

約数ペア:

[(1, 389631405), (3, 129877135), (5, 77926281), (15, 25975427), (31, 12568755), (41, 9503205), (93, 4189585), (107, 3641415), (123, 3167735), (155, 2513751), (191, 2039955), (205, 1900641), (321, 1213805), (465, 837917), (535, 728283), (573, 679985), (615, 633547), (955, 407991), (1271, 306555), (1605, 242761), (2865, 135997), (3317, 117465), (3813, 102185), (4387, 88815), (5921, 65805), (6355, 61311), (7831, 49755), (9951, 39155), (13161, 29605), (16585, 23493), (17763, 21935), (19065, 20437)]