721304320

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{51229}}^1$

素因数の和:51261

約数の個数: 72

約数和(自身を含む): 1884854160

約数和(自身を除く): 1163549840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 51229, 102458, 204916, 256145, 409832, 512290, 563519, 819664, 1024580, 1127038, 1639328, 2049160, 2254076, 2817595, 3278656, 4098320, 4508152, 5635190, 6557312, 8196640, 9016304, 11270380, 13114624, 16393280, 18032608, 22540760, 32786560, 36065216, 45081520, 65573120, 72130432, 90163040, 144260864, 180326080, 360652160, 721304320]

約数ペア:

[(1, 721304320), (2, 360652160), (4, 180326080), (5, 144260864), (8, 90163040), (10, 72130432), (11, 65573120), (16, 45081520), (20, 36065216), (22, 32786560), (32, 22540760), (40, 18032608), (44, 16393280), (55, 13114624), (64, 11270380), (80, 9016304), (88, 8196640), (110, 6557312), (128, 5635190), (160, 4508152), (176, 4098320), (220, 3278656), (256, 2817595), (320, 2254076), (352, 2049160), (440, 1639328), (640, 1127038), (704, 1024580), (880, 819664), (1280, 563519), (1408, 512290), (1760, 409832), (2816, 256145), (3520, 204916), (7040, 102458), (14080, 51229)]