28350420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9643}}^1$

素因数の和:9669

約数の個数: 72

約数和(自身を含む): 92350944

約数和(自身を除く): 64000524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9643, 19286, 28929, 38572, 48215, 57858, 67501, 96430, 115716, 135002, 144645, 192860, 202503, 270004, 289290, 337505, 405006, 472507, 578580, 675010, 810012, 945014, 1012515, 1350020, 1417521, 1890028, 2025030, 2362535, 2835042, 4050060, 4725070, 5670084, 7087605, 9450140, 14175210, 28350420]

約数ペア:

[(1, 28350420), (2, 14175210), (3, 9450140), (4, 7087605), (5, 5670084), (6, 4725070), (7, 4050060), (10, 2835042), (12, 2362535), (14, 2025030), (15, 1890028), (20, 1417521), (21, 1350020), (28, 1012515), (30, 945014), (35, 810012), (42, 675010), (49, 578580), (60, 472507), (70, 405006), (84, 337505), (98, 289290), (105, 270004), (140, 202503), (147, 192860), (196, 144645), (210, 135002), (245, 115716), (294, 96430), (420, 67501), (490, 57858), (588, 48215), (735, 38572), (980, 28929), (1470, 19286), (2940, 9643)]