17956540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 44643312

約数和(自身を除く): 26686772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 251, 292, 365, 490, 502, 511, 730, 980, 1004, 1022, 1255, 1460, 1757, 2044, 2510, 2555, 3514, 3577, 5020, 5110, 7028, 7154, 8785, 10220, 12299, 14308, 17570, 17885, 18323, 24598, 35140, 35770, 36646, 49196, 61495, 71540, 73292, 91615, 122990, 128261, 183230, 245980, 256522, 366460, 513044, 641305, 897827, 1282610, 1795654, 2565220, 3591308, 4489135, 8978270, 17956540]

約数ペア:

[(1, 17956540), (2, 8978270), (4, 4489135), (5, 3591308), (7, 2565220), (10, 1795654), (14, 1282610), (20, 897827), (28, 641305), (35, 513044), (49, 366460), (70, 256522), (73, 245980), (98, 183230), (140, 128261), (146, 122990), (196, 91615), (245, 73292), (251, 71540), (292, 61495), (365, 49196), (490, 36646), (502, 35770), (511, 35140), (730, 24598), (980, 18323), (1004, 17885), (1022, 17570), (1255, 14308), (1460, 12299), (1757, 10220), (2044, 8785), (2510, 7154), (2555, 7028), (3514, 5110), (3577, 5020)]