20115553535

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{20627}}^1$

素因数の和:20816

約数の個数: 64

約数和(自身を含む): 32080665600

約数和(自身を除く): 11965112065

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 149, 187, 385, 595, 745, 935, 1043, 1309, 1639, 2533, 5215, 6545, 8195, 11473, 12665, 17731, 20627, 27863, 57365, 88655, 103135, 139315, 144389, 195041, 226897, 350659, 721945, 975205, 1134485, 1588279, 1753295, 2454613, 3073423, 3857249, 7941395, 12273065, 15367115, 19286245, 21513961, 27000743, 33807653, 52248191, 107569805, 135003715, 169038265, 236653571, 261240955, 365737337, 574730101, 1183267855, 1828686685, 2873650505, 4023110707, 20115553535]

約数ペア:

[(1, 20115553535), (5, 4023110707), (7, 2873650505), (11, 1828686685), (17, 1183267855), (35, 574730101), (55, 365737337), (77, 261240955), (85, 236653571), (119, 169038265), (149, 135003715), (187, 107569805), (385, 52248191), (595, 33807653), (745, 27000743), (935, 21513961), (1043, 19286245), (1309, 15367115), (1639, 12273065), (2533, 7941395), (5215, 3857249), (6545, 3073423), (8195, 2454613), (11473, 1753295), (12665, 1588279), (17731, 1134485), (20627, 975205), (27863, 721945), (57365, 350659), (88655, 226897), (103135, 195041), (139315, 144389)]