420120680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1669}}^1$

素因数の和:1747

約数の個数: 128

約数和(自身を含む): 1154304000

約数和(自身を除く): 734183320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 406, 434, 580, 620, 812, 868, 899, 1015, 1085, 1160, 1240, 1624, 1669, 1736, 1798, 2030, 2170, 3338, 3596, 4060, 4340, 4495, 6293, 6676, 7192, 8120, 8345, 8680, 8990, 11683, 12586, 13352, 16690, 17980, 23366, 25172, 31465, 33380, 35960, 46732, 48401, 50344, 51739, 58415, 62930, 66760, 93464, 96802, 103478, 116830, 125860, 193604, 206956, 233660, 242005, 251720, 258695, 338807, 362173, 387208, 413912, 467320, 484010, 517390, 677614, 724346, 968020, 1034780, 1355228, 1448692, 1500431, 1694035, 1810865, 1936040, 2069560, 2710456, 2897384, 3000862, 3388070, 3621730, 6001724, 6776140, 7243460, 7502155, 10503017, 12003448, 13552280, 14486920, 15004310, 21006034, 30008620, 42012068, 52515085, 60017240, 84024136, 105030170, 210060340, 420120680]

約数ペア:

[(1, 420120680), (2, 210060340), (4, 105030170), (5, 84024136), (7, 60017240), (8, 52515085), (10, 42012068), (14, 30008620), (20, 21006034), (28, 15004310), (29, 14486920), (31, 13552280), (35, 12003448), (40, 10503017), (56, 7502155), (58, 7243460), (62, 6776140), (70, 6001724), (116, 3621730), (124, 3388070), (140, 3000862), (145, 2897384), (155, 2710456), (203, 2069560), (217, 1936040), (232, 1810865), (248, 1694035), (280, 1500431), (290, 1448692), (310, 1355228), (406, 1034780), (434, 968020), (580, 724346), (620, 677614), (812, 517390), (868, 484010), (899, 467320), (1015, 413912), (1085, 387208), (1160, 362173), (1240, 338807), (1624, 258695), (1669, 251720), (1736, 242005), (1798, 233660), (2030, 206956), (2170, 193604), (3338, 125860), (3596, 116830), (4060, 103478), (4340, 96802), (4495, 93464), (6293, 66760), (6676, 62930), (7192, 58415), (8120, 51739), (8345, 50344), (8680, 48401), (8990, 46732), (11683, 35960), (12586, 33380), (13352, 31465), (16690, 25172), (17980, 23366)]