289469960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{42821}}^1$

素因数の和:42858

約数の個数: 48

約数和(自身を含む): 705278340

約数和(自身を除く): 415808380

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 42821, 85642, 171284, 214105, 342568, 428210, 556673, 856420, 1113346, 1712840, 2226692, 2783365, 4453384, 5566730, 7236749, 11133460, 14473498, 22266920, 28946996, 36183745, 57893992, 72367490, 144734980, 289469960]

約数ペア:

[(1, 289469960), (2, 144734980), (4, 72367490), (5, 57893992), (8, 36183745), (10, 28946996), (13, 22266920), (20, 14473498), (26, 11133460), (40, 7236749), (52, 5566730), (65, 4453384), (104, 2783365), (130, 2226692), (169, 1712840), (260, 1113346), (338, 856420), (520, 556673), (676, 428210), (845, 342568), (1352, 214105), (1690, 171284), (3380, 85642), (6760, 42821)]