78047660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 167378400

約数和(自身を除く): 89330740

約数列:

[1, 2, 4, 5, 10, 20, 89, 163, 178, 269, 326, 356, 445, 538, 652, 815, 890, 1076, 1345, 1630, 1780, 2690, 3260, 5380, 14507, 23941, 29014, 43847, 47882, 58028, 72535, 87694, 95764, 119705, 145070, 175388, 219235, 239410, 290140, 438470, 478820, 876940, 3902383, 7804766, 15609532, 19511915, 39023830, 78047660]

約数ペア:

[(1, 78047660), (2, 39023830), (4, 19511915), (5, 15609532), (10, 7804766), (20, 3902383), (89, 876940), (163, 478820), (178, 438470), (269, 290140), (326, 239410), (356, 219235), (445, 175388), (538, 145070), (652, 119705), (815, 95764), (890, 87694), (1076, 72535), (1345, 58028), (1630, 47882), (1780, 43847), (2690, 29014), (3260, 23941), (5380, 14507)]