64272040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 173560320

約数和(自身を除く): 109288280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 61, 70, 71, 106, 122, 140, 142, 212, 244, 265, 280, 284, 305, 355, 371, 424, 427, 488, 497, 530, 568, 610, 710, 742, 854, 994, 1060, 1220, 1420, 1484, 1708, 1855, 1988, 2120, 2135, 2440, 2485, 2840, 2968, 3233, 3416, 3710, 3763, 3976, 4270, 4331, 4970, 6466, 7420, 7526, 8540, 8662, 9940, 12932, 14840, 15052, 16165, 17080, 17324, 18815, 19880, 21655, 22631, 25864, 26341, 30104, 30317, 32330, 34648, 37630, 43310, 45262, 52682, 60634, 64660, 75260, 86620, 90524, 105364, 113155, 121268, 129320, 131705, 150520, 151585, 173240, 181048, 210728, 226310, 229543, 242536, 263410, 303170, 452620, 459086, 526820, 606340, 905240, 918172, 1053640, 1147715, 1212680, 1606801, 1836344, 2295430, 3213602, 4590860, 6427204, 8034005, 9181720, 12854408, 16068010, 32136020, 64272040]

約数ペア:

[(1, 64272040), (2, 32136020), (4, 16068010), (5, 12854408), (7, 9181720), (8, 8034005), (10, 6427204), (14, 4590860), (20, 3213602), (28, 2295430), (35, 1836344), (40, 1606801), (53, 1212680), (56, 1147715), (61, 1053640), (70, 918172), (71, 905240), (106, 606340), (122, 526820), (140, 459086), (142, 452620), (212, 303170), (244, 263410), (265, 242536), (280, 229543), (284, 226310), (305, 210728), (355, 181048), (371, 173240), (424, 151585), (427, 150520), (488, 131705), (497, 129320), (530, 121268), (568, 113155), (610, 105364), (710, 90524), (742, 86620), (854, 75260), (994, 64660), (1060, 60634), (1220, 52682), (1420, 45262), (1484, 43310), (1708, 37630), (1855, 34648), (1988, 32330), (2120, 30317), (2135, 30104), (2440, 26341), (2485, 25864), (2840, 22631), (2968, 21655), (3233, 19880), (3416, 18815), (3710, 17324), (3763, 17080), (3976, 16165), (4270, 15052), (4331, 14840), (4970, 12932), (6466, 9940), (7420, 8662), (7526, 8540)]