18744460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 47343744

約数和(自身を除く): 28599284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 617, 620, 868, 980, 1085, 1234, 1519, 2170, 2468, 3038, 3085, 4319, 4340, 6076, 6170, 7595, 8638, 12340, 15190, 17276, 19127, 21595, 30233, 30380, 38254, 43190, 60466, 76508, 86380, 95635, 120932, 133889, 151165, 191270, 267778, 302330, 382540, 535556, 604660, 669445, 937223, 1338890, 1874446, 2677780, 3748892, 4686115, 9372230, 18744460]

約数ペア:

[(1, 18744460), (2, 9372230), (4, 4686115), (5, 3748892), (7, 2677780), (10, 1874446), (14, 1338890), (20, 937223), (28, 669445), (31, 604660), (35, 535556), (49, 382540), (62, 302330), (70, 267778), (98, 191270), (124, 151165), (140, 133889), (155, 120932), (196, 95635), (217, 86380), (245, 76508), (310, 60466), (434, 43190), (490, 38254), (617, 30380), (620, 30233), (868, 21595), (980, 19127), (1085, 17276), (1234, 15190), (1519, 12340), (2170, 8638), (2468, 7595), (3038, 6170), (3085, 6076), (4319, 4340)]