21628192640

素因数分解:

$2^7\times 5^1\times {\mathrm{6211}}^1\times {\mathrm{5441}}^1$

素因数の和:11671

約数の個数: 64

約数和(自身を含む): 51722727120

約数和(自身を除く): 30094534480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 5441, 6211, 10882, 12422, 21764, 24844, 27205, 31055, 43528, 49688, 54410, 62110, 87056, 99376, 108820, 124220, 174112, 198752, 217640, 248440, 348224, 397504, 435280, 496880, 696448, 795008, 870560, 993760, 1741120, 1987520, 3482240, 3975040, 33794051, 67588102, 135176204, 168970255, 270352408, 337940510, 540704816, 675881020, 1081409632, 1351762040, 2162819264, 2703524080, 4325638528, 5407048160, 10814096320, 21628192640]

約数ペア:

[(1, 21628192640), (2, 10814096320), (4, 5407048160), (5, 4325638528), (8, 2703524080), (10, 2162819264), (16, 1351762040), (20, 1081409632), (32, 675881020), (40, 540704816), (64, 337940510), (80, 270352408), (128, 168970255), (160, 135176204), (320, 67588102), (640, 33794051), (5441, 3975040), (6211, 3482240), (10882, 1987520), (12422, 1741120), (21764, 993760), (24844, 870560), (27205, 795008), (31055, 696448), (43528, 496880), (49688, 435280), (54410, 397504), (62110, 348224), (87056, 248440), (99376, 217640), (108820, 198752), (124220, 174112)]