211305220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 522466560

約数和(自身を除く): 311161340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 109, 122, 140, 218, 227, 244, 305, 427, 436, 454, 545, 610, 763, 854, 908, 1090, 1135, 1220, 1526, 1589, 1708, 2135, 2180, 2270, 3052, 3178, 3815, 4270, 4540, 6356, 6649, 7630, 7945, 8540, 13298, 13847, 15260, 15890, 24743, 26596, 27694, 31780, 33245, 46543, 49486, 55388, 66490, 69235, 93086, 96929, 98972, 123715, 132980, 138470, 173201, 186172, 193858, 232715, 247430, 276940, 346402, 387716, 465430, 484645, 494860, 692804, 866005, 930860, 969290, 1509323, 1732010, 1938580, 3018646, 3464020, 6037292, 7546615, 10565261, 15093230, 21130522, 30186460, 42261044, 52826305, 105652610, 211305220]

約数ペア:

[(1, 211305220), (2, 105652610), (4, 52826305), (5, 42261044), (7, 30186460), (10, 21130522), (14, 15093230), (20, 10565261), (28, 7546615), (35, 6037292), (61, 3464020), (70, 3018646), (109, 1938580), (122, 1732010), (140, 1509323), (218, 969290), (227, 930860), (244, 866005), (305, 692804), (427, 494860), (436, 484645), (454, 465430), (545, 387716), (610, 346402), (763, 276940), (854, 247430), (908, 232715), (1090, 193858), (1135, 186172), (1220, 173201), (1526, 138470), (1589, 132980), (1708, 123715), (2135, 98972), (2180, 96929), (2270, 93086), (3052, 69235), (3178, 66490), (3815, 55388), (4270, 49486), (4540, 46543), (6356, 33245), (6649, 31780), (7630, 27694), (7945, 26596), (8540, 24743), (13298, 15890), (13847, 15260)]