20148050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 40830720

約数和(自身を除く): 20682670

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 139, 223, 278, 325, 446, 650, 695, 1115, 1390, 1807, 2230, 2899, 3475, 3614, 5575, 5798, 6950, 9035, 11150, 14495, 18070, 28990, 30997, 45175, 61994, 72475, 90350, 144950, 154985, 309970, 402961, 774925, 805922, 1549850, 2014805, 4029610, 10074025, 20148050]

約数ペア:

[(1, 20148050), (2, 10074025), (5, 4029610), (10, 2014805), (13, 1549850), (25, 805922), (26, 774925), (50, 402961), (65, 309970), (130, 154985), (139, 144950), (223, 90350), (278, 72475), (325, 61994), (446, 45175), (650, 30997), (695, 28990), (1115, 18070), (1390, 14495), (1807, 11150), (2230, 9035), (2899, 6950), (3475, 5798), (3614, 5575)]