312960020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 718502400

約数和(自身を除く): 405542380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 107, 172, 179, 190, 214, 215, 358, 380, 428, 430, 535, 716, 817, 860, 895, 1070, 1634, 1790, 2033, 2140, 3268, 3401, 3580, 4066, 4085, 4601, 6802, 7697, 8132, 8170, 9202, 10165, 13604, 15394, 16340, 17005, 18404, 19153, 20330, 23005, 30788, 34010, 38306, 38485, 40660, 46010, 68020, 76612, 76970, 87419, 92020, 95765, 146243, 153940, 174838, 191530, 292486, 349676, 363907, 383060, 437095, 584972, 727814, 731215, 823579, 874190, 1455628, 1462430, 1647158, 1748380, 1819535, 2924860, 3294316, 3639070, 4117895, 7278140, 8235790, 15648001, 16471580, 31296002, 62592004, 78240005, 156480010, 312960020]

約数ペア:

[(1, 312960020), (2, 156480010), (4, 78240005), (5, 62592004), (10, 31296002), (19, 16471580), (20, 15648001), (38, 8235790), (43, 7278140), (76, 4117895), (86, 3639070), (95, 3294316), (107, 2924860), (172, 1819535), (179, 1748380), (190, 1647158), (214, 1462430), (215, 1455628), (358, 874190), (380, 823579), (428, 731215), (430, 727814), (535, 584972), (716, 437095), (817, 383060), (860, 363907), (895, 349676), (1070, 292486), (1634, 191530), (1790, 174838), (2033, 153940), (2140, 146243), (3268, 95765), (3401, 92020), (3580, 87419), (4066, 76970), (4085, 76612), (4601, 68020), (6802, 46010), (7697, 40660), (8132, 38485), (8170, 38306), (9202, 34010), (10165, 30788), (13604, 23005), (15394, 20330), (16340, 19153), (17005, 18404)]