18805220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 28691740

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, 619, 620, 868, 980, 1085, 1238, 1519, 2170, 2476, 3038, 3095, 4333, 4340, 6076, 6190, 7595, 8666, 12380, 15190, 17332, 19189, 21665, 30331, 30380, 38378, 43330, 60662, 76756, 86660, 95945, 121324, 134323, 151655, 191890, 268646, 303310, 383780, 537292, 606620, 671615, 940261, 1343230, 1880522, 2686460, 3761044, 4701305, 9402610, 18805220]

約数ペア:

[(1, 18805220), (2, 9402610), (4, 4701305), (5, 3761044), (7, 2686460), (10, 1880522), (14, 1343230), (20, 940261), (28, 671615), (31, 606620), (35, 537292), (49, 383780), (62, 303310), (70, 268646), (98, 191890), (124, 151655), (140, 134323), (155, 121324), (196, 95945), (217, 86660), (245, 76756), (310, 60662), (434, 43330), (490, 38378), (619, 30380), (620, 30331), (868, 21665), (980, 19189), (1085, 17332), (1238, 15190), (1519, 12380), (2170, 8666), (2476, 7595), (3038, 6190), (3095, 6076), (4333, 4340)]