19627760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 80

約数和(自身を含む): 49476000

約数和(自身を除く): 29848240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 37, 38, 40, 74, 76, 80, 95, 148, 152, 185, 190, 296, 304, 349, 370, 380, 592, 698, 703, 740, 760, 1396, 1406, 1480, 1520, 1745, 2792, 2812, 2960, 3490, 3515, 5584, 5624, 6631, 6980, 7030, 11248, 12913, 13262, 13960, 14060, 25826, 26524, 27920, 28120, 33155, 51652, 53048, 56240, 64565, 66310, 103304, 106096, 129130, 132620, 206608, 245347, 258260, 265240, 490694, 516520, 530480, 981388, 1033040, 1226735, 1962776, 2453470, 3925552, 4906940, 9813880, 19627760]

約数ペア:

[(1, 19627760), (2, 9813880), (4, 4906940), (5, 3925552), (8, 2453470), (10, 1962776), (16, 1226735), (19, 1033040), (20, 981388), (37, 530480), (38, 516520), (40, 490694), (74, 265240), (76, 258260), (80, 245347), (95, 206608), (148, 132620), (152, 129130), (185, 106096), (190, 103304), (296, 66310), (304, 64565), (349, 56240), (370, 53048), (380, 51652), (592, 33155), (698, 28120), (703, 27920), (740, 26524), (760, 25826), (1396, 14060), (1406, 13960), (1480, 13262), (1520, 12913), (1745, 11248), (2792, 7030), (2812, 6980), (2960, 6631), (3490, 5624), (3515, 5584)]