17807120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 43590960

約数和(自身を除く): 25783840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 89, 122, 164, 178, 205, 244, 305, 328, 356, 410, 445, 488, 610, 656, 712, 820, 890, 976, 1220, 1424, 1640, 1780, 2440, 2501, 3280, 3560, 3649, 4880, 5002, 5429, 7120, 7298, 10004, 10858, 12505, 14596, 18245, 20008, 21716, 25010, 27145, 29192, 36490, 40016, 43432, 50020, 54290, 58384, 72980, 86864, 100040, 108580, 145960, 200080, 217160, 222589, 291920, 434320, 445178, 890356, 1112945, 1780712, 2225890, 3561424, 4451780, 8903560, 17807120]

約数ペア:

[(1, 17807120), (2, 8903560), (4, 4451780), (5, 3561424), (8, 2225890), (10, 1780712), (16, 1112945), (20, 890356), (40, 445178), (41, 434320), (61, 291920), (80, 222589), (82, 217160), (89, 200080), (122, 145960), (164, 108580), (178, 100040), (205, 86864), (244, 72980), (305, 58384), (328, 54290), (356, 50020), (410, 43432), (445, 40016), (488, 36490), (610, 29192), (656, 27145), (712, 25010), (820, 21716), (890, 20008), (976, 18245), (1220, 14596), (1424, 12505), (1640, 10858), (1780, 10004), (2440, 7298), (2501, 7120), (3280, 5429), (3560, 5002), (3649, 4880)]