215498640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{128273}}^1$

素因数の和:128296

約数の個数: 80

約数和(自身を含む): 763486848

約数和(自身を除く): 547988208

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 128273, 256546, 384819, 513092, 641365, 769638, 897911, 1026184, 1282730, 1539276, 1795822, 1924095, 2052368, 2565460, 2693733, 3078552, 3591644, 3848190, 4489555, 5130920, 5387466, 6157104, 7183288, 7696380, 8979110, 10261840, 10774932, 13468665, 14366576, 15392760, 17958220, 21549864, 26937330, 30785520, 35916440, 43099728, 53874660, 71832880, 107749320, 215498640]

約数ペア:

[(1, 215498640), (2, 107749320), (3, 71832880), (4, 53874660), (5, 43099728), (6, 35916440), (7, 30785520), (8, 26937330), (10, 21549864), (12, 17958220), (14, 15392760), (15, 14366576), (16, 13468665), (20, 10774932), (21, 10261840), (24, 8979110), (28, 7696380), (30, 7183288), (35, 6157104), (40, 5387466), (42, 5130920), (48, 4489555), (56, 3848190), (60, 3591644), (70, 3078552), (80, 2693733), (84, 2565460), (105, 2052368), (112, 1924095), (120, 1795822), (140, 1539276), (168, 1282730), (210, 1026184), (240, 897911), (280, 769638), (336, 641365), (420, 513092), (560, 384819), (840, 256546), (1680, 128273)]