61421480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{883}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 145117440

約数和(自身を除く): 83695960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 235, 296, 370, 376, 470, 740, 883, 940, 1480, 1739, 1766, 1880, 3478, 3532, 4415, 6956, 7064, 8695, 8830, 13912, 17390, 17660, 32671, 34780, 35320, 41501, 65342, 69560, 83002, 130684, 163355, 166004, 207505, 261368, 326710, 332008, 415010, 653420, 830020, 1306840, 1535537, 1660040, 3071074, 6142148, 7677685, 12284296, 15355370, 30710740, 61421480]

約数ペア:

[(1, 61421480), (2, 30710740), (4, 15355370), (5, 12284296), (8, 7677685), (10, 6142148), (20, 3071074), (37, 1660040), (40, 1535537), (47, 1306840), (74, 830020), (94, 653420), (148, 415010), (185, 332008), (188, 326710), (235, 261368), (296, 207505), (370, 166004), (376, 163355), (470, 130684), (740, 83002), (883, 69560), (940, 65342), (1480, 41501), (1739, 35320), (1766, 34780), (1880, 32671), (3478, 17660), (3532, 17390), (4415, 13912), (6956, 8830), (7064, 8695)]