998690420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{571}}^1$

素因数の和:662

約数の個数: 144

約数和(自身を含む): 2671853184

約数和(自身を除く): 1673162764

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 182, 217, 260, 310, 364, 403, 434, 455, 571, 620, 806, 868, 910, 961, 1085, 1142, 1612, 1820, 1922, 2015, 2170, 2284, 2821, 2855, 3844, 3997, 4030, 4340, 4805, 5642, 5710, 6727, 7423, 7994, 8060, 9610, 11284, 11420, 12493, 13454, 14105, 14846, 15988, 17701, 19220, 19985, 24986, 26908, 28210, 29692, 33635, 35402, 37115, 39970, 49972, 51961, 56420, 62465, 67270, 70804, 74230, 79940, 87451, 88505, 103922, 123907, 124930, 134540, 148460, 174902, 177010, 207844, 230113, 247814, 249860, 259805, 349804, 354020, 437255, 460226, 495628, 519610, 548731, 619535, 874510, 920452, 1039220, 1097462, 1150565, 1239070, 1610791, 1749020, 2194924, 2301130, 2478140, 2743655, 3221582, 3841117, 4602260, 5487310, 6443164, 7133503, 7682234, 8053955, 10974620, 14267006, 15364468, 16107910, 19205585, 28534012, 32215820, 35667515, 38411170, 49934521, 71335030, 76822340, 99869042, 142670060, 199738084, 249672605, 499345210, 998690420]

約数ペア:

[(1, 998690420), (2, 499345210), (4, 249672605), (5, 199738084), (7, 142670060), (10, 99869042), (13, 76822340), (14, 71335030), (20, 49934521), (26, 38411170), (28, 35667515), (31, 32215820), (35, 28534012), (52, 19205585), (62, 16107910), (65, 15364468), (70, 14267006), (91, 10974620), (124, 8053955), (130, 7682234), (140, 7133503), (155, 6443164), (182, 5487310), (217, 4602260), (260, 3841117), (310, 3221582), (364, 2743655), (403, 2478140), (434, 2301130), (455, 2194924), (571, 1749020), (620, 1610791), (806, 1239070), (868, 1150565), (910, 1097462), (961, 1039220), (1085, 920452), (1142, 874510), (1612, 619535), (1820, 548731), (1922, 519610), (2015, 495628), (2170, 460226), (2284, 437255), (2821, 354020), (2855, 349804), (3844, 259805), (3997, 249860), (4030, 247814), (4340, 230113), (4805, 207844), (5642, 177010), (5710, 174902), (6727, 148460), (7423, 134540), (7994, 124930), (8060, 123907), (9610, 103922), (11284, 88505), (11420, 87451), (12493, 79940), (13454, 74230), (14105, 70804), (14846, 67270), (15988, 62465), (17701, 56420), (19220, 51961), (19985, 49972), (24986, 39970), (26908, 37115), (28210, 35402), (29692, 33635)]