19505590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 21318410

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 53, 65, 95, 106, 130, 149, 190, 247, 265, 298, 494, 530, 689, 745, 1007, 1235, 1378, 1490, 1937, 2014, 2470, 2831, 3445, 3874, 5035, 5662, 6890, 7897, 9685, 10070, 13091, 14155, 15794, 19370, 26182, 28310, 36803, 39485, 65455, 73606, 78970, 102661, 130910, 150043, 184015, 205322, 300086, 368030, 513305, 750215, 1026610, 1500430, 1950559, 3901118, 9752795, 19505590]

約数ペア:

[(1, 19505590), (2, 9752795), (5, 3901118), (10, 1950559), (13, 1500430), (19, 1026610), (26, 750215), (38, 513305), (53, 368030), (65, 300086), (95, 205322), (106, 184015), (130, 150043), (149, 130910), (190, 102661), (247, 78970), (265, 73606), (298, 65455), (494, 39485), (530, 36803), (689, 28310), (745, 26182), (1007, 19370), (1235, 15794), (1378, 14155), (1490, 13091), (1937, 10070), (2014, 9685), (2470, 7897), (2831, 6890), (3445, 5662), (3874, 5035)]