818397340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{30469}}^1$

素因数の和:30574

約数の個数: 48

約数和(自身を含む): 1842825600

約数和(自身を除く): 1024428260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 790, 1343, 1580, 2686, 5372, 6715, 13430, 26860, 30469, 60938, 121876, 152345, 304690, 517973, 609380, 1035946, 2071892, 2407051, 2589865, 4814102, 5179730, 9628204, 10359460, 12035255, 24070510, 40919867, 48141020, 81839734, 163679468, 204599335, 409198670, 818397340]

約数ペア:

[(1, 818397340), (2, 409198670), (4, 204599335), (5, 163679468), (10, 81839734), (17, 48141020), (20, 40919867), (34, 24070510), (68, 12035255), (79, 10359460), (85, 9628204), (158, 5179730), (170, 4814102), (316, 2589865), (340, 2407051), (395, 2071892), (790, 1035946), (1343, 609380), (1580, 517973), (2686, 304690), (5372, 152345), (6715, 121876), (13430, 60938), (26860, 30469)]