19835790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 51734592

約数和(自身を除く): 31898802

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 181, 195, 281, 362, 390, 543, 562, 843, 905, 1086, 1405, 1686, 1810, 2353, 2715, 2810, 3653, 4215, 4706, 5430, 7059, 7306, 8430, 10959, 11765, 14118, 18265, 21918, 23530, 35295, 36530, 50861, 54795, 70590, 101722, 109590, 152583, 254305, 305166, 508610, 661193, 762915, 1322386, 1525830, 1983579, 3305965, 3967158, 6611930, 9917895, 19835790]

約数ペア:

[(1, 19835790), (2, 9917895), (3, 6611930), (5, 3967158), (6, 3305965), (10, 1983579), (13, 1525830), (15, 1322386), (26, 762915), (30, 661193), (39, 508610), (65, 305166), (78, 254305), (130, 152583), (181, 109590), (195, 101722), (281, 70590), (362, 54795), (390, 50861), (543, 36530), (562, 35295), (843, 23530), (905, 21918), (1086, 18265), (1405, 14118), (1686, 11765), (1810, 10959), (2353, 8430), (2715, 7306), (2810, 7059), (3653, 5430), (4215, 4706)]