78670480

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 160

約数和(自身を含む): 221414400

約数和(自身を除く): 142743920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 49, 56, 61, 70, 80, 94, 98, 112, 122, 140, 188, 196, 235, 244, 245, 280, 305, 329, 343, 376, 392, 427, 470, 488, 490, 560, 610, 658, 686, 752, 784, 854, 940, 976, 980, 1220, 1316, 1372, 1645, 1708, 1715, 1880, 1960, 2135, 2303, 2440, 2632, 2744, 2867, 2989, 3290, 3416, 3430, 3760, 3920, 4270, 4606, 4880, 5264, 5488, 5734, 5978, 6580, 6832, 6860, 8540, 9212, 11468, 11515, 11956, 13160, 13720, 14335, 14945, 16121, 17080, 18424, 20069, 20923, 22936, 23030, 23912, 26320, 27440, 28670, 29890, 32242, 34160, 36848, 40138, 41846, 45872, 46060, 47824, 57340, 59780, 64484, 80276, 80605, 83692, 92120, 100345, 104615, 114680, 119560, 128968, 140483, 160552, 161210, 167384, 184240, 200690, 209230, 229360, 239120, 257936, 280966, 321104, 322420, 334768, 401380, 418460, 561932, 644840, 702415, 802760, 836920, 983381, 1123864, 1289680, 1404830, 1605520, 1673840, 1966762, 2247728, 2809660, 3933524, 4916905, 5619320, 7867048, 9833810, 11238640, 15734096, 19667620, 39335240, 78670480]

約数ペア:

[(1, 78670480), (2, 39335240), (4, 19667620), (5, 15734096), (7, 11238640), (8, 9833810), (10, 7867048), (14, 5619320), (16, 4916905), (20, 3933524), (28, 2809660), (35, 2247728), (40, 1966762), (47, 1673840), (49, 1605520), (56, 1404830), (61, 1289680), (70, 1123864), (80, 983381), (94, 836920), (98, 802760), (112, 702415), (122, 644840), (140, 561932), (188, 418460), (196, 401380), (235, 334768), (244, 322420), (245, 321104), (280, 280966), (305, 257936), (329, 239120), (343, 229360), (376, 209230), (392, 200690), (427, 184240), (470, 167384), (488, 161210), (490, 160552), (560, 140483), (610, 128968), (658, 119560), (686, 114680), (752, 104615), (784, 100345), (854, 92120), (940, 83692), (976, 80605), (980, 80276), (1220, 64484), (1316, 59780), (1372, 57340), (1645, 47824), (1708, 46060), (1715, 45872), (1880, 41846), (1960, 40138), (2135, 36848), (2303, 34160), (2440, 32242), (2632, 29890), (2744, 28670), (2867, 27440), (2989, 26320), (3290, 23912), (3416, 23030), (3430, 22936), (3760, 20923), (3920, 20069), (4270, 18424), (4606, 17080), (4880, 16121), (5264, 14945), (5488, 14335), (5734, 13720), (5978, 13160), (6580, 11956), (6832, 11515), (6860, 11468), (8540, 9212)]