20187942340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{378193}}^1$

素因数の和:378376

約数の個数: 48

約数和(自身を含む): 45174516912

約数和(自身を除く): 24986574572

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 157, 170, 314, 340, 628, 785, 1570, 2669, 3140, 5338, 10676, 13345, 26690, 53380, 378193, 756386, 1512772, 1890965, 3781930, 6429281, 7563860, 12858562, 25717124, 32146405, 59376301, 64292810, 118752602, 128585620, 237505204, 296881505, 593763010, 1009397117, 1187526020, 2018794234, 4037588468, 5046985585, 10093971170, 20187942340]

約数ペア:

[(1, 20187942340), (2, 10093971170), (4, 5046985585), (5, 4037588468), (10, 2018794234), (17, 1187526020), (20, 1009397117), (34, 593763010), (68, 296881505), (85, 237505204), (157, 128585620), (170, 118752602), (314, 64292810), (340, 59376301), (628, 32146405), (785, 25717124), (1570, 12858562), (2669, 7563860), (3140, 6429281), (5338, 3781930), (10676, 1890965), (13345, 1512772), (26690, 756386), (53380, 378193)]