720284220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{587}}^1$

素因数の和:1020

約数の個数: 144

約数和(自身を含む): 2323103328

約数和(自身を除く): 1602819108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 401, 510, 587, 612, 765, 802, 1020, 1174, 1203, 1530, 1604, 1761, 2005, 2348, 2406, 2935, 3060, 3522, 3609, 4010, 4812, 5283, 5870, 6015, 6817, 7044, 7218, 8020, 8805, 9979, 10566, 11740, 12030, 13634, 14436, 17610, 18045, 19958, 20451, 21132, 24060, 26415, 27268, 29937, 34085, 35220, 36090, 39916, 40902, 49895, 52830, 59874, 61353, 68170, 72180, 81804, 89811, 99790, 102255, 105660, 119748, 122706, 136340, 149685, 179622, 199580, 204510, 235387, 245412, 299370, 306765, 359244, 409020, 449055, 470774, 598740, 613530, 706161, 898110, 941548, 1176935, 1227060, 1412322, 1796220, 2118483, 2353870, 2824644, 3530805, 4001579, 4236966, 4707740, 7061610, 8003158, 8473932, 10592415, 12004737, 14123220, 16006316, 20007895, 21184830, 24009474, 36014211, 40015790, 42369660, 48018948, 60023685, 72028422, 80031580, 120047370, 144056844, 180071055, 240094740, 360142110, 720284220]

約数ペア:

[(1, 720284220), (2, 360142110), (3, 240094740), (4, 180071055), (5, 144056844), (6, 120047370), (9, 80031580), (10, 72028422), (12, 60023685), (15, 48018948), (17, 42369660), (18, 40015790), (20, 36014211), (30, 24009474), (34, 21184830), (36, 20007895), (45, 16006316), (51, 14123220), (60, 12004737), (68, 10592415), (85, 8473932), (90, 8003158), (102, 7061610), (153, 4707740), (170, 4236966), (180, 4001579), (204, 3530805), (255, 2824644), (306, 2353870), (340, 2118483), (401, 1796220), (510, 1412322), (587, 1227060), (612, 1176935), (765, 941548), (802, 898110), (1020, 706161), (1174, 613530), (1203, 598740), (1530, 470774), (1604, 449055), (1761, 409020), (2005, 359244), (2348, 306765), (2406, 299370), (2935, 245412), (3060, 235387), (3522, 204510), (3609, 199580), (4010, 179622), (4812, 149685), (5283, 136340), (5870, 122706), (6015, 119748), (6817, 105660), (7044, 102255), (7218, 99790), (8020, 89811), (8805, 81804), (9979, 72180), (10566, 68170), (11740, 61353), (12030, 59874), (13634, 52830), (14436, 49895), (17610, 40902), (18045, 39916), (19958, 36090), (20451, 35220), (21132, 34085), (24060, 29937), (26415, 27268)]