816578980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:653

約数の個数: 96

約数和(自身を含む): 1997807616

約数和(自身を除く): 1181228636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 157, 194, 314, 383, 388, 485, 628, 679, 766, 785, 970, 1099, 1358, 1532, 1570, 1915, 1940, 2198, 2681, 2716, 3140, 3395, 3830, 4396, 5362, 5495, 6790, 7660, 10724, 10990, 13405, 13580, 15229, 21980, 26810, 30458, 37151, 53620, 60131, 60916, 74302, 76145, 106603, 120262, 148604, 152290, 185755, 213206, 240524, 260057, 300655, 304580, 371510, 420917, 426412, 520114, 533015, 601310, 743020, 841834, 1040228, 1066030, 1202620, 1300285, 1683668, 2104585, 2132060, 2600570, 4209170, 5201140, 5832707, 8418340, 11665414, 23330828, 29163535, 40828949, 58327070, 81657898, 116654140, 163315796, 204144745, 408289490, 816578980]

約数ペア:

[(1, 816578980), (2, 408289490), (4, 204144745), (5, 163315796), (7, 116654140), (10, 81657898), (14, 58327070), (20, 40828949), (28, 29163535), (35, 23330828), (70, 11665414), (97, 8418340), (140, 5832707), (157, 5201140), (194, 4209170), (314, 2600570), (383, 2132060), (388, 2104585), (485, 1683668), (628, 1300285), (679, 1202620), (766, 1066030), (785, 1040228), (970, 841834), (1099, 743020), (1358, 601310), (1532, 533015), (1570, 520114), (1915, 426412), (1940, 420917), (2198, 371510), (2681, 304580), (2716, 300655), (3140, 260057), (3395, 240524), (3830, 213206), (4396, 185755), (5362, 152290), (5495, 148604), (6790, 120262), (7660, 106603), (10724, 76145), (10990, 74302), (13405, 60916), (13580, 60131), (15229, 53620), (21980, 37151), (26810, 30458)]