220818285

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:272

約数の個数: 96

約数和(自身を含む): 434522880

約数和(自身を除く): 213704595

約数列:

[1, 3, 5, 9, 15, 19, 23, 27, 45, 57, 69, 95, 115, 135, 171, 197, 207, 285, 345, 361, 437, 513, 591, 621, 855, 985, 1035, 1083, 1311, 1773, 1805, 2185, 2565, 2955, 3105, 3249, 3743, 3933, 4531, 5319, 5415, 6555, 8303, 8865, 9747, 11229, 11799, 13593, 16245, 18715, 19665, 22655, 24909, 26595, 33687, 40779, 41515, 48735, 56145, 58995, 67965, 71117, 74727, 86089, 101061, 122337, 124545, 168435, 203895, 213351, 224181, 258267, 355585, 373635, 430445, 505305, 611685, 640053, 774801, 1066755, 1120905, 1291335, 1635691, 1920159, 2324403, 3200265, 3874005, 4907073, 8178455, 9600795, 11622015, 14721219, 24535365, 44163657, 73606095, 220818285]

約数ペア:

[(1, 220818285), (3, 73606095), (5, 44163657), (9, 24535365), (15, 14721219), (19, 11622015), (23, 9600795), (27, 8178455), (45, 4907073), (57, 3874005), (69, 3200265), (95, 2324403), (115, 1920159), (135, 1635691), (171, 1291335), (197, 1120905), (207, 1066755), (285, 774801), (345, 640053), (361, 611685), (437, 505305), (513, 430445), (591, 373635), (621, 355585), (855, 258267), (985, 224181), (1035, 213351), (1083, 203895), (1311, 168435), (1773, 124545), (1805, 122337), (2185, 101061), (2565, 86089), (2955, 74727), (3105, 71117), (3249, 67965), (3743, 58995), (3933, 56145), (4531, 48735), (5319, 41515), (5415, 40779), (6555, 33687), (8303, 26595), (8865, 24909), (9747, 22655), (11229, 19665), (11799, 18715), (13593, 16245)]