77321720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1019}}^1$

素因数の和:1308

約数の個数: 64

約数和(自身を含む): 199756800

約数和(自身を除く): 122435080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 271, 280, 542, 1019, 1084, 1355, 1897, 2038, 2168, 2710, 3794, 4076, 5095, 5420, 7133, 7588, 8152, 9485, 10190, 10840, 14266, 15176, 18970, 20380, 28532, 35665, 37940, 40760, 57064, 71330, 75880, 142660, 276149, 285320, 552298, 1104596, 1380745, 1933043, 2209192, 2761490, 3866086, 5522980, 7732172, 9665215, 11045960, 15464344, 19330430, 38660860, 77321720]

約数ペア:

[(1, 77321720), (2, 38660860), (4, 19330430), (5, 15464344), (7, 11045960), (8, 9665215), (10, 7732172), (14, 5522980), (20, 3866086), (28, 2761490), (35, 2209192), (40, 1933043), (56, 1380745), (70, 1104596), (140, 552298), (271, 285320), (280, 276149), (542, 142660), (1019, 75880), (1084, 71330), (1355, 57064), (1897, 40760), (2038, 37940), (2168, 35665), (2710, 28532), (3794, 20380), (4076, 18970), (5095, 15176), (5420, 14266), (7133, 10840), (7588, 10190), (8152, 9485)]