642829840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{472669}}^1$

素因数の和:472699

約数の個数: 40

約数和(自身を含む): 1582499160

約数和(自身を除く): 939669320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 472669, 945338, 1890676, 2363345, 3781352, 4726690, 7562704, 8035373, 9453380, 16070746, 18906760, 32141492, 37813520, 40176865, 64282984, 80353730, 128565968, 160707460, 321414920, 642829840]

約数ペア:

[(1, 642829840), (2, 321414920), (4, 160707460), (5, 128565968), (8, 80353730), (10, 64282984), (16, 40176865), (17, 37813520), (20, 32141492), (34, 18906760), (40, 16070746), (68, 9453380), (80, 8035373), (85, 7562704), (136, 4726690), (170, 3781352), (272, 2363345), (340, 1890676), (680, 945338), (1360, 472669)]