398335912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1013}}^1$

素因数の和:1250

約数の個数: 64

約数和(自身を含む): 851760000

約数和(自身を除く): 453424088

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 199, 247, 398, 494, 796, 988, 1013, 1592, 1976, 2026, 2587, 3781, 4052, 5174, 7562, 8104, 10348, 13169, 15124, 19247, 20696, 26338, 30248, 38494, 49153, 52676, 76988, 98306, 105352, 153976, 196612, 201587, 250211, 393224, 403174, 500422, 806348, 1000844, 1612696, 2001688, 2620631, 3830153, 5241262, 7660306, 10482524, 15320612, 20965048, 30641224, 49791989, 99583978, 199167956, 398335912]

約数ペア:

[(1, 398335912), (2, 199167956), (4, 99583978), (8, 49791989), (13, 30641224), (19, 20965048), (26, 15320612), (38, 10482524), (52, 7660306), (76, 5241262), (104, 3830153), (152, 2620631), (199, 2001688), (247, 1612696), (398, 1000844), (494, 806348), (796, 500422), (988, 403174), (1013, 393224), (1592, 250211), (1976, 201587), (2026, 196612), (2587, 153976), (3781, 105352), (4052, 98306), (5174, 76988), (7562, 52676), (8104, 49153), (10348, 38494), (13169, 30248), (15124, 26338), (19247, 20696)]