21524880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6899}}^1$

素因数の和:6928

約数の個数: 80

約数和(自身を含む): 71870400

約数和(自身を除く): 50345520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6899, 13798, 20697, 27596, 34495, 41394, 55192, 68990, 82788, 89687, 103485, 110384, 137980, 165576, 179374, 206970, 269061, 275960, 331152, 358748, 413940, 448435, 538122, 551920, 717496, 827880, 896870, 1076244, 1345305, 1434992, 1655760, 1793740, 2152488, 2690610, 3587480, 4304976, 5381220, 7174960, 10762440, 21524880]

約数ペア:

[(1, 21524880), (2, 10762440), (3, 7174960), (4, 5381220), (5, 4304976), (6, 3587480), (8, 2690610), (10, 2152488), (12, 1793740), (13, 1655760), (15, 1434992), (16, 1345305), (20, 1076244), (24, 896870), (26, 827880), (30, 717496), (39, 551920), (40, 538122), (48, 448435), (52, 413940), (60, 358748), (65, 331152), (78, 275960), (80, 269061), (104, 206970), (120, 179374), (130, 165576), (156, 137980), (195, 110384), (208, 103485), (240, 89687), (260, 82788), (312, 68990), (390, 55192), (520, 41394), (624, 34495), (780, 27596), (1040, 20697), (1560, 13798), (3120, 6899)]