400256964

素因数分解:

$2^2\times 3^5\times {\mathrm{19}}^1\times {\mathrm{21673}}^1$

素因数の和:21711

約数の個数: 72

約数和(自身を含む): 1104507040

約数和(自身を除く): 704250076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 81, 108, 114, 162, 171, 228, 243, 324, 342, 486, 513, 684, 972, 1026, 1539, 2052, 3078, 4617, 6156, 9234, 18468, 21673, 43346, 65019, 86692, 130038, 195057, 260076, 390114, 411787, 585171, 780228, 823574, 1170342, 1235361, 1647148, 1755513, 2340684, 2470722, 3511026, 3706083, 4941444, 5266539, 7022052, 7412166, 10533078, 11118249, 14824332, 21066156, 22236498, 33354747, 44472996, 66709494, 100064241, 133418988, 200128482, 400256964]

約数ペア:

[(1, 400256964), (2, 200128482), (3, 133418988), (4, 100064241), (6, 66709494), (9, 44472996), (12, 33354747), (18, 22236498), (19, 21066156), (27, 14824332), (36, 11118249), (38, 10533078), (54, 7412166), (57, 7022052), (76, 5266539), (81, 4941444), (108, 3706083), (114, 3511026), (162, 2470722), (171, 2340684), (228, 1755513), (243, 1647148), (324, 1235361), (342, 1170342), (486, 823574), (513, 780228), (684, 585171), (972, 411787), (1026, 390114), (1539, 260076), (2052, 195057), (3078, 130038), (4617, 86692), (6156, 65019), (9234, 43346), (18468, 21673)]