200900980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7069}}^1$

素因数の和:7121

約数の個数: 72

約数和(自身を含む): 507767400

約数和(自身を除く): 306866420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2842, 4060, 5684, 7069, 7105, 14138, 14210, 28276, 28420, 35345, 49483, 70690, 98966, 141380, 197932, 205001, 247415, 346381, 410002, 494830, 692762, 820004, 989660, 1025005, 1385524, 1435007, 1731905, 2050010, 2870014, 3463810, 4100020, 5740028, 6927620, 7175035, 10045049, 14350070, 20090098, 28700140, 40180196, 50225245, 100450490, 200900980]

約数ペア:

[(1, 200900980), (2, 100450490), (4, 50225245), (5, 40180196), (7, 28700140), (10, 20090098), (14, 14350070), (20, 10045049), (28, 7175035), (29, 6927620), (35, 5740028), (49, 4100020), (58, 3463810), (70, 2870014), (98, 2050010), (116, 1731905), (140, 1435007), (145, 1385524), (196, 1025005), (203, 989660), (245, 820004), (290, 692762), (406, 494830), (490, 410002), (580, 346381), (812, 247415), (980, 205001), (1015, 197932), (1421, 141380), (2030, 98966), (2842, 70690), (4060, 49483), (5684, 35345), (7069, 28420), (7105, 28276), (14138, 14210)]