80521520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59207}}^1$

素因数の和:59237

約数の個数: 40

約数和(自身を含む): 198228384

約数和(自身を除く): 117706864

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 59207, 118414, 236828, 296035, 473656, 592070, 947312, 1006519, 1184140, 2013038, 2368280, 4026076, 4736560, 5032595, 8052152, 10065190, 16104304, 20130380, 40260760, 80521520]

約数ペア:

[(1, 80521520), (2, 40260760), (4, 20130380), (5, 16104304), (8, 10065190), (10, 8052152), (16, 5032595), (17, 4736560), (20, 4026076), (34, 2368280), (40, 2013038), (68, 1184140), (80, 1006519), (85, 947312), (136, 592070), (170, 473656), (272, 296035), (340, 236828), (680, 118414), (1360, 59207)]