20138448100

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^2\times {\mathrm{617}}^2$

素因数の和:1294

約数の個数: 81

約数和(自身を含む): 45757221307

約数和(自身を除く): 25618773207

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 529, 575, 617, 1058, 1150, 1234, 2116, 2300, 2468, 2645, 3085, 5290, 6170, 10580, 12340, 13225, 14191, 15425, 26450, 28382, 30850, 52900, 56764, 61700, 70955, 141910, 283820, 326393, 354775, 380689, 652786, 709550, 761378, 1305572, 1419100, 1522756, 1631965, 1903445, 3263930, 3806890, 6527860, 7613780, 8159825, 8755847, 9517225, 16319650, 17511694, 19034450, 32639300, 35023388, 38068900, 43779235, 87558470, 175116940, 201384481, 218896175, 402768962, 437792350, 805537924, 875584700, 1006922405, 2013844810, 4027689620, 5034612025, 10069224050, 20138448100]

約数ペア:

[(1, 20138448100), (2, 10069224050), (4, 5034612025), (5, 4027689620), (10, 2013844810), (20, 1006922405), (23, 875584700), (25, 805537924), (46, 437792350), (50, 402768962), (92, 218896175), (100, 201384481), (115, 175116940), (230, 87558470), (460, 43779235), (529, 38068900), (575, 35023388), (617, 32639300), (1058, 19034450), (1150, 17511694), (1234, 16319650), (2116, 9517225), (2300, 8755847), (2468, 8159825), (2645, 7613780), (3085, 6527860), (5290, 3806890), (6170, 3263930), (10580, 1903445), (12340, 1631965), (13225, 1522756), (14191, 1419100), (15425, 1305572), (26450, 761378), (28382, 709550), (30850, 652786), (52900, 380689), (56764, 354775), (61700, 326393), (70955, 283820)]