20237747900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{88801}}^1$

素因数の和:88911

約数の個数: 72

約数和(自身を含む): 45785600784

約数和(自身を除く): 25547852884

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 53, 86, 100, 106, 172, 212, 215, 265, 430, 530, 860, 1060, 1075, 1325, 2150, 2279, 2650, 4300, 4558, 5300, 9116, 11395, 22790, 45580, 56975, 88801, 113950, 177602, 227900, 355204, 444005, 888010, 1776020, 2220025, 3818443, 4440050, 4706453, 7636886, 8880100, 9412906, 15273772, 18825812, 19092215, 23532265, 38184430, 47064530, 76368860, 94129060, 95461075, 117661325, 190922150, 202377479, 235322650, 381844300, 404754958, 470645300, 809509916, 1011887395, 2023774790, 4047549580, 5059436975, 10118873950, 20237747900]

約数ペア:

[(1, 20237747900), (2, 10118873950), (4, 5059436975), (5, 4047549580), (10, 2023774790), (20, 1011887395), (25, 809509916), (43, 470645300), (50, 404754958), (53, 381844300), (86, 235322650), (100, 202377479), (106, 190922150), (172, 117661325), (212, 95461075), (215, 94129060), (265, 76368860), (430, 47064530), (530, 38184430), (860, 23532265), (1060, 19092215), (1075, 18825812), (1325, 15273772), (2150, 9412906), (2279, 8880100), (2650, 7636886), (4300, 4706453), (4558, 4440050), (5300, 3818443), (9116, 2220025), (11395, 1776020), (22790, 888010), (45580, 444005), (56975, 355204), (88801, 227900), (113950, 177602)]