17698540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 38435040

約数和(自身を除く): 20736500

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 122, 163, 178, 244, 305, 326, 356, 445, 610, 652, 815, 890, 1220, 1630, 1780, 3260, 5429, 9943, 10858, 14507, 19886, 21716, 27145, 29014, 39772, 49715, 54290, 58028, 72535, 99430, 108580, 145070, 198860, 290140, 884927, 1769854, 3539708, 4424635, 8849270, 17698540]

約数ペア:

[(1, 17698540), (2, 8849270), (4, 4424635), (5, 3539708), (10, 1769854), (20, 884927), (61, 290140), (89, 198860), (122, 145070), (163, 108580), (178, 99430), (244, 72535), (305, 58028), (326, 54290), (356, 49715), (445, 39772), (610, 29014), (652, 27145), (815, 21716), (890, 19886), (1220, 14507), (1630, 10858), (1780, 9943), (3260, 5429)]