20480070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3089}}^1$

素因数の和:3129

約数の個数: 64

約数和(自身を含む): 56064960

約数和(自身を除く): 35584890

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3089, 3315, 6178, 6630, 9267, 15445, 18534, 30890, 40157, 46335, 52513, 80314, 92670, 105026, 120471, 157539, 200785, 240942, 262565, 315078, 401570, 525130, 602355, 682669, 787695, 1204710, 1365338, 1575390, 2048007, 3413345, 4096014, 6826690, 10240035, 20480070]

約数ペア:

[(1, 20480070), (2, 10240035), (3, 6826690), (5, 4096014), (6, 3413345), (10, 2048007), (13, 1575390), (15, 1365338), (17, 1204710), (26, 787695), (30, 682669), (34, 602355), (39, 525130), (51, 401570), (65, 315078), (78, 262565), (85, 240942), (102, 200785), (130, 157539), (170, 120471), (195, 105026), (221, 92670), (255, 80314), (390, 52513), (442, 46335), (510, 40157), (663, 30890), (1105, 18534), (1326, 15445), (2210, 9267), (3089, 6630), (3315, 6178)]