720222020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{853}}^1$

素因数の和:1069

約数の個数: 96

約数和(自身を含む): 1788235008

約数和(自身を除く): 1068012988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 163, 185, 259, 326, 370, 518, 652, 740, 815, 853, 1036, 1141, 1295, 1630, 1706, 2282, 2590, 3260, 3412, 4265, 4564, 5180, 5705, 5971, 6031, 8530, 11410, 11942, 12062, 17060, 22820, 23884, 24124, 29855, 30155, 31561, 42217, 59710, 60310, 63122, 84434, 119420, 120620, 126244, 139039, 157805, 168868, 211085, 220927, 278078, 315610, 422170, 441854, 556156, 631220, 695195, 844340, 883708, 973273, 1104635, 1390390, 1946546, 2209270, 2780780, 3893092, 4418540, 4866365, 5144443, 9732730, 10288886, 19465460, 20577772, 25722215, 36011101, 51444430, 72022202, 102888860, 144044404, 180055505, 360111010, 720222020]

約数ペア:

[(1, 720222020), (2, 360111010), (4, 180055505), (5, 144044404), (7, 102888860), (10, 72022202), (14, 51444430), (20, 36011101), (28, 25722215), (35, 20577772), (37, 19465460), (70, 10288886), (74, 9732730), (140, 5144443), (148, 4866365), (163, 4418540), (185, 3893092), (259, 2780780), (326, 2209270), (370, 1946546), (518, 1390390), (652, 1104635), (740, 973273), (815, 883708), (853, 844340), (1036, 695195), (1141, 631220), (1295, 556156), (1630, 441854), (1706, 422170), (2282, 315610), (2590, 278078), (3260, 220927), (3412, 211085), (4265, 168868), (4564, 157805), (5180, 139039), (5705, 126244), (5971, 120620), (6031, 119420), (8530, 84434), (11410, 63122), (11942, 60310), (12062, 59710), (17060, 42217), (22820, 31561), (23884, 30155), (24124, 29855)]