390985875

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:538

約数の個数: 96

約数和(自身を含む): 813795840

約数和(自身を除く): 422809965

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 131, 175, 225, 315, 375, 379, 393, 525, 655, 875, 917, 1125, 1137, 1179, 1575, 1895, 1965, 2625, 2653, 2751, 3275, 3411, 4585, 5685, 5895, 7875, 7959, 8253, 9475, 9825, 13265, 13755, 16375, 17055, 22925, 23877, 28425, 29475, 39795, 41265, 47375, 49125, 49649, 66325, 68775, 85275, 114625, 119385, 142125, 147375, 148947, 198975, 206325, 248245, 331625, 343875, 347543, 426375, 446841, 596925, 744735, 994875, 1031625, 1042629, 1241225, 1737715, 2234205, 2984625, 3127887, 3723675, 5213145, 6206125, 8688575, 11171025, 15639435, 18618375, 26065725, 43442875, 55855125, 78197175, 130328625, 390985875]

約数ペア:

[(1, 390985875), (3, 130328625), (5, 78197175), (7, 55855125), (9, 43442875), (15, 26065725), (21, 18618375), (25, 15639435), (35, 11171025), (45, 8688575), (63, 6206125), (75, 5213145), (105, 3723675), (125, 3127887), (131, 2984625), (175, 2234205), (225, 1737715), (315, 1241225), (375, 1042629), (379, 1031625), (393, 994875), (525, 744735), (655, 596925), (875, 446841), (917, 426375), (1125, 347543), (1137, 343875), (1179, 331625), (1575, 248245), (1895, 206325), (1965, 198975), (2625, 148947), (2653, 147375), (2751, 142125), (3275, 119385), (3411, 114625), (4585, 85275), (5685, 68775), (5895, 66325), (7875, 49649), (7959, 49125), (8253, 47375), (9475, 41265), (9825, 39795), (13265, 29475), (13755, 28425), (16375, 23877), (17055, 22925)]