30254140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6971}}^1$

素因数の和:7018

約数の個数: 48

約数和(自身を含む): 74962944

約数和(自身を除く): 44708804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6971, 13942, 27884, 34855, 48797, 69710, 97594, 139420, 195188, 216101, 243985, 432202, 487970, 864404, 975940, 1080505, 1512707, 2161010, 3025414, 4322020, 6050828, 7563535, 15127070, 30254140]

約数ペア:

[(1, 30254140), (2, 15127070), (4, 7563535), (5, 6050828), (7, 4322020), (10, 3025414), (14, 2161010), (20, 1512707), (28, 1080505), (31, 975940), (35, 864404), (62, 487970), (70, 432202), (124, 243985), (140, 216101), (155, 195188), (217, 139420), (310, 97594), (434, 69710), (620, 48797), (868, 34855), (1085, 27884), (2170, 13942), (4340, 6971)]