321079040

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3533}}^1$

素因数の和:3625

約数の個数: 72

約数和(自身を含む): 780137568

約数和(自身を除く): 459058528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 568, 640, 710, 1136, 1280, 1420, 2272, 2840, 3533, 4544, 5680, 7066, 9088, 11360, 14132, 17665, 18176, 22720, 28264, 35330, 45440, 56528, 70660, 90880, 113056, 141320, 226112, 250843, 282640, 452224, 501686, 565280, 904448, 1003372, 1130560, 1254215, 2006744, 2261120, 2508430, 4013488, 4522240, 5016860, 8026976, 10033720, 16053952, 20067440, 32107904, 40134880, 64215808, 80269760, 160539520, 321079040]

約数ペア:

[(1, 321079040), (2, 160539520), (4, 80269760), (5, 64215808), (8, 40134880), (10, 32107904), (16, 20067440), (20, 16053952), (32, 10033720), (40, 8026976), (64, 5016860), (71, 4522240), (80, 4013488), (128, 2508430), (142, 2261120), (160, 2006744), (256, 1254215), (284, 1130560), (320, 1003372), (355, 904448), (568, 565280), (640, 501686), (710, 452224), (1136, 282640), (1280, 250843), (1420, 226112), (2272, 141320), (2840, 113056), (3533, 90880), (4544, 70660), (5680, 56528), (7066, 45440), (9088, 35330), (11360, 28264), (14132, 22720), (17665, 18176)]