19892516

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 44593920

約数和(自身を除く): 24701404

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 68, 79, 92, 119, 158, 161, 238, 316, 322, 391, 476, 529, 553, 644, 782, 1058, 1106, 1343, 1564, 1817, 2116, 2212, 2686, 2737, 3634, 3703, 5372, 5474, 7268, 7406, 8993, 9401, 10948, 12719, 14812, 17986, 18802, 25438, 30889, 35972, 37604, 41791, 50876, 61778, 62951, 83582, 123556, 125902, 167164, 216223, 251804, 292537, 432446, 585074, 710447, 864892, 1170148, 1420894, 2841788, 4973129, 9946258, 19892516]

約数ペア:

[(1, 19892516), (2, 9946258), (4, 4973129), (7, 2841788), (14, 1420894), (17, 1170148), (23, 864892), (28, 710447), (34, 585074), (46, 432446), (68, 292537), (79, 251804), (92, 216223), (119, 167164), (158, 125902), (161, 123556), (238, 83582), (316, 62951), (322, 61778), (391, 50876), (476, 41791), (529, 37604), (553, 35972), (644, 30889), (782, 25438), (1058, 18802), (1106, 17986), (1343, 14812), (1564, 12719), (1817, 10948), (2116, 9401), (2212, 8993), (2686, 7406), (2737, 7268), (3634, 5474), (3703, 5372)]