868640

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 2109240

約数和(自身を除く): 1240600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 89, 122, 160, 178, 244, 305, 356, 445, 488, 610, 712, 890, 976, 1220, 1424, 1780, 1952, 2440, 2848, 3560, 4880, 5429, 7120, 9760, 10858, 14240, 21716, 27145, 43432, 54290, 86864, 108580, 173728, 217160, 434320, 868640]

約数ペア:

[(1, 868640), (2, 434320), (4, 217160), (5, 173728), (8, 108580), (10, 86864), (16, 54290), (20, 43432), (32, 27145), (40, 21716), (61, 14240), (80, 10858), (89, 9760), (122, 7120), (160, 5429), (178, 4880), (244, 3560), (305, 2848), (356, 2440), (445, 1952), (488, 1780), (610, 1424), (712, 1220), (890, 976)]