20009679725

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{70019}}^1$

素因数の和:70130

約数の個数: 48

約数和(自身を含む): 30006650880

約数和(自身を除く): 9996971155

約数列:

[1, 5, 7, 23, 25, 35, 71, 115, 161, 175, 355, 497, 575, 805, 1633, 1775, 2485, 4025, 8165, 11431, 12425, 40825, 57155, 70019, 285775, 350095, 490133, 1610437, 1750475, 2450665, 4971349, 8052185, 11273059, 12253325, 24856745, 34799443, 40260925, 56365295, 114341027, 124283725, 173997215, 281826475, 571705135, 800387189, 869986075, 2858525675, 4001935945, 20009679725]

約数ペア:

[(1, 20009679725), (5, 4001935945), (7, 2858525675), (23, 869986075), (25, 800387189), (35, 571705135), (71, 281826475), (115, 173997215), (161, 124283725), (175, 114341027), (355, 56365295), (497, 40260925), (575, 34799443), (805, 24856745), (1633, 12253325), (1775, 11273059), (2485, 8052185), (4025, 4971349), (8165, 2450665), (11431, 1750475), (12425, 1610437), (40825, 490133), (57155, 350095), (70019, 285775)]