1898493940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 4788516096

約数和(自身を除く): 2890022156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 103, 124, 137, 140, 155, 206, 217, 274, 310, 412, 434, 515, 548, 620, 685, 721, 868, 959, 961, 1030, 1085, 1370, 1442, 1918, 1922, 2060, 2170, 2740, 2884, 3193, 3605, 3836, 3844, 4247, 4340, 4795, 4805, 6386, 6727, 7210, 8494, 9590, 9610, 12772, 13454, 14111, 14420, 15965, 16988, 19180, 19220, 21235, 22351, 26908, 28222, 29729, 31930, 33635, 42470, 44702, 56444, 59458, 63860, 67270, 70555, 84940, 89404, 98777, 98983, 111755, 118916, 131657, 134540, 141110, 148645, 197554, 197966, 223510, 263314, 282220, 297290, 395108, 395932, 437441, 447020, 493885, 494915, 526628, 594580, 658285, 692881, 874882, 921599, 987770, 989830, 1316570, 1385762, 1749764, 1843198, 1975540, 1979660, 2187205, 2633140, 2771524, 3062087, 3464405, 3686396, 4374410, 4607995, 6124174, 6928810, 8748820, 9215990, 12248348, 13560671, 13857620, 15310435, 18431980, 27121342, 30620870, 54242684, 61241740, 67803355, 94924697, 135606710, 189849394, 271213420, 379698788, 474623485, 949246970, 1898493940]

約数ペア:

[(1, 1898493940), (2, 949246970), (4, 474623485), (5, 379698788), (7, 271213420), (10, 189849394), (14, 135606710), (20, 94924697), (28, 67803355), (31, 61241740), (35, 54242684), (62, 30620870), (70, 27121342), (103, 18431980), (124, 15310435), (137, 13857620), (140, 13560671), (155, 12248348), (206, 9215990), (217, 8748820), (274, 6928810), (310, 6124174), (412, 4607995), (434, 4374410), (515, 3686396), (548, 3464405), (620, 3062087), (685, 2771524), (721, 2633140), (868, 2187205), (959, 1979660), (961, 1975540), (1030, 1843198), (1085, 1749764), (1370, 1385762), (1442, 1316570), (1918, 989830), (1922, 987770), (2060, 921599), (2170, 874882), (2740, 692881), (2884, 658285), (3193, 594580), (3605, 526628), (3836, 494915), (3844, 493885), (4247, 447020), (4340, 437441), (4795, 395932), (4805, 395108), (6386, 297290), (6727, 282220), (7210, 263314), (8494, 223510), (9590, 197966), (9610, 197554), (12772, 148645), (13454, 141110), (14111, 134540), (14420, 131657), (15965, 118916), (16988, 111755), (19180, 98983), (19220, 98777), (21235, 89404), (22351, 84940), (26908, 70555), (28222, 67270), (29729, 63860), (31930, 59458), (33635, 56444), (42470, 44702)]