399156712

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{947}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 819072000

約数和(自身を除く): 419915288

約数列:

[1, 2, 4, 8, 19, 38, 47, 59, 76, 94, 118, 152, 188, 236, 376, 472, 893, 947, 1121, 1786, 1894, 2242, 2773, 3572, 3788, 4484, 5546, 7144, 7576, 8968, 11092, 17993, 22184, 35986, 44509, 52687, 55873, 71972, 89018, 105374, 111746, 143944, 178036, 210748, 223492, 356072, 421496, 446984, 845671, 1061587, 1691342, 2123174, 2626031, 3382684, 4246348, 5252062, 6765368, 8492696, 10504124, 21008248, 49894589, 99789178, 199578356, 399156712]

約数ペア:

[(1, 399156712), (2, 199578356), (4, 99789178), (8, 49894589), (19, 21008248), (38, 10504124), (47, 8492696), (59, 6765368), (76, 5252062), (94, 4246348), (118, 3382684), (152, 2626031), (188, 2123174), (236, 1691342), (376, 1061587), (472, 845671), (893, 446984), (947, 421496), (1121, 356072), (1786, 223492), (1894, 210748), (2242, 178036), (2773, 143944), (3572, 111746), (3788, 105374), (4484, 89018), (5546, 71972), (7144, 55873), (7576, 52687), (8968, 44509), (11092, 35986), (17993, 22184)]