18642260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10243}}^1$

素因数の和:10272

約数の個数: 48

約数和(自身を含む): 48187776

約数和(自身を除く): 29545516

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10243, 20486, 40972, 51215, 71701, 102430, 133159, 143402, 204860, 266318, 286804, 358505, 532636, 665795, 717010, 932113, 1331590, 1434020, 1864226, 2663180, 3728452, 4660565, 9321130, 18642260]

約数ペア:

[(1, 18642260), (2, 9321130), (4, 4660565), (5, 3728452), (7, 2663180), (10, 1864226), (13, 1434020), (14, 1331590), (20, 932113), (26, 717010), (28, 665795), (35, 532636), (52, 358505), (65, 286804), (70, 266318), (91, 204860), (130, 143402), (140, 133159), (182, 102430), (260, 71701), (364, 51215), (455, 40972), (910, 20486), (1820, 10243)]