28100100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13381}}^1$

素因数の和:13405

約数の個数: 72

約数和(自身を含む): 92924608

約数和(自身を除く): 64824508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 13381, 26762, 40143, 53524, 66905, 80286, 93667, 133810, 160572, 187334, 200715, 267620, 281001, 334525, 374668, 401430, 468335, 562002, 669050, 802860, 936670, 1003575, 1124004, 1338100, 1405005, 1873340, 2007150, 2341675, 2810010, 4014300, 4683350, 5620020, 7025025, 9366700, 14050050, 28100100]

約数ペア:

[(1, 28100100), (2, 14050050), (3, 9366700), (4, 7025025), (5, 5620020), (6, 4683350), (7, 4014300), (10, 2810010), (12, 2341675), (14, 2007150), (15, 1873340), (20, 1405005), (21, 1338100), (25, 1124004), (28, 1003575), (30, 936670), (35, 802860), (42, 669050), (50, 562002), (60, 468335), (70, 401430), (75, 374668), (84, 334525), (100, 281001), (105, 267620), (140, 200715), (150, 187334), (175, 160572), (210, 133810), (300, 93667), (350, 80286), (420, 66905), (525, 53524), (700, 40143), (1050, 26762), (2100, 13381)]