82181820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{27953}}^1$

素因数の和:27979

約数の個数: 72

約数和(自身を含む): 267687504

約数和(自身を除く): 185505684

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, 27953, 55906, 83859, 111812, 139765, 167718, 195671, 279530, 335436, 391342, 419295, 559060, 587013, 782684, 838590, 978355, 1174026, 1369697, 1677180, 1956710, 2348052, 2739394, 2935065, 3913420, 4109091, 5478788, 5870130, 6848485, 8218182, 11740260, 13696970, 16436364, 20545455, 27393940, 41090910, 82181820]

約数ペア:

[(1, 82181820), (2, 41090910), (3, 27393940), (4, 20545455), (5, 16436364), (6, 13696970), (7, 11740260), (10, 8218182), (12, 6848485), (14, 5870130), (15, 5478788), (20, 4109091), (21, 3913420), (28, 2935065), (30, 2739394), (35, 2348052), (42, 1956710), (49, 1677180), (60, 1369697), (70, 1174026), (84, 978355), (98, 838590), (105, 782684), (140, 587013), (147, 559060), (196, 419295), (210, 391342), (245, 335436), (294, 279530), (420, 195671), (490, 167718), (588, 139765), (735, 111812), (980, 83859), (1470, 55906), (2940, 27953)]