21172080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4643}}^1$

素因数の和:4678

約数の個数: 80

約数和(自身を含む): 69102720

約数和(自身を除く): 47930640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4643, 9286, 13929, 18572, 23215, 27858, 37144, 46430, 55716, 69645, 74288, 88217, 92860, 111432, 139290, 176434, 185720, 222864, 264651, 278580, 352868, 371440, 441085, 529302, 557160, 705736, 882170, 1058604, 1114320, 1323255, 1411472, 1764340, 2117208, 2646510, 3528680, 4234416, 5293020, 7057360, 10586040, 21172080]

約数ペア:

[(1, 21172080), (2, 10586040), (3, 7057360), (4, 5293020), (5, 4234416), (6, 3528680), (8, 2646510), (10, 2117208), (12, 1764340), (15, 1411472), (16, 1323255), (19, 1114320), (20, 1058604), (24, 882170), (30, 705736), (38, 557160), (40, 529302), (48, 441085), (57, 371440), (60, 352868), (76, 278580), (80, 264651), (95, 222864), (114, 185720), (120, 176434), (152, 139290), (190, 111432), (228, 92860), (240, 88217), (285, 74288), (304, 69645), (380, 55716), (456, 46430), (570, 37144), (760, 27858), (912, 23215), (1140, 18572), (1520, 13929), (2280, 9286), (4560, 4643)]