19503440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{599}}^1$

素因数の和:660

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 31386160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 55, 74, 80, 88, 110, 148, 176, 185, 220, 296, 370, 407, 440, 592, 599, 740, 814, 880, 1198, 1480, 1628, 2035, 2396, 2960, 2995, 3256, 4070, 4792, 5990, 6512, 6589, 8140, 9584, 11980, 13178, 16280, 22163, 23960, 26356, 32560, 32945, 44326, 47920, 52712, 65890, 88652, 105424, 110815, 131780, 177304, 221630, 243793, 263560, 354608, 443260, 487586, 527120, 886520, 975172, 1218965, 1773040, 1950344, 2437930, 3900688, 4875860, 9751720, 19503440]

約数ペア:

[(1, 19503440), (2, 9751720), (4, 4875860), (5, 3900688), (8, 2437930), (10, 1950344), (11, 1773040), (16, 1218965), (20, 975172), (22, 886520), (37, 527120), (40, 487586), (44, 443260), (55, 354608), (74, 263560), (80, 243793), (88, 221630), (110, 177304), (148, 131780), (176, 110815), (185, 105424), (220, 88652), (296, 65890), (370, 52712), (407, 47920), (440, 44326), (592, 32945), (599, 32560), (740, 26356), (814, 23960), (880, 22163), (1198, 16280), (1480, 13178), (1628, 11980), (2035, 9584), (2396, 8140), (2960, 6589), (2995, 6512), (3256, 5990), (4070, 4792)]