640920144

素因数分解:

$2^4\times 3^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{1811}}^1$

素因数の和:1996

約数の個数: 80

約数和(自身を含む): 1695945024

約数和(自身を除く): 1055024880

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 73, 101, 146, 202, 219, 292, 303, 404, 438, 584, 606, 808, 876, 1168, 1212, 1616, 1752, 1811, 2424, 3504, 3622, 4848, 5433, 7244, 7373, 10866, 14488, 14746, 21732, 22119, 28976, 29492, 43464, 44238, 58984, 86928, 88476, 117968, 132203, 176952, 182911, 264406, 353904, 365822, 396609, 528812, 548733, 731644, 793218, 1057624, 1097466, 1463288, 1586436, 2115248, 2194932, 2926576, 3172872, 4389864, 6345744, 8779728, 13352503, 26705006, 40057509, 53410012, 80115018, 106820024, 160230036, 213640048, 320460072, 640920144]

約数ペア:

[(1, 640920144), (2, 320460072), (3, 213640048), (4, 160230036), (6, 106820024), (8, 80115018), (12, 53410012), (16, 40057509), (24, 26705006), (48, 13352503), (73, 8779728), (101, 6345744), (146, 4389864), (202, 3172872), (219, 2926576), (292, 2194932), (303, 2115248), (404, 1586436), (438, 1463288), (584, 1097466), (606, 1057624), (808, 793218), (876, 731644), (1168, 548733), (1212, 528812), (1616, 396609), (1752, 365822), (1811, 353904), (2424, 264406), (3504, 182911), (3622, 176952), (4848, 132203), (5433, 117968), (7244, 88476), (7373, 86928), (10866, 58984), (14488, 44238), (14746, 43464), (21732, 29492), (22119, 28976)]