31375100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 72912000

約数和(自身を除く): 41536900

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 31, 50, 58, 62, 100, 116, 124, 145, 155, 290, 310, 349, 580, 620, 698, 725, 775, 899, 1396, 1450, 1550, 1745, 1798, 2900, 3100, 3490, 3596, 4495, 6980, 8725, 8990, 10121, 10819, 17450, 17980, 20242, 21638, 22475, 34900, 40484, 43276, 44950, 50605, 54095, 89900, 101210, 108190, 202420, 216380, 253025, 270475, 313751, 506050, 540950, 627502, 1012100, 1081900, 1255004, 1568755, 3137510, 6275020, 7843775, 15687550, 31375100]

約数ペア:

[(1, 31375100), (2, 15687550), (4, 7843775), (5, 6275020), (10, 3137510), (20, 1568755), (25, 1255004), (29, 1081900), (31, 1012100), (50, 627502), (58, 540950), (62, 506050), (100, 313751), (116, 270475), (124, 253025), (145, 216380), (155, 202420), (290, 108190), (310, 101210), (349, 89900), (580, 54095), (620, 50605), (698, 44950), (725, 43276), (775, 40484), (899, 34900), (1396, 22475), (1450, 21638), (1550, 20242), (1745, 17980), (1798, 17450), (2900, 10819), (3100, 10121), (3490, 8990), (3596, 8725), (4495, 6980)]