40880020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{601}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 91022400

約数和(自身を除く): 50142380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 601, 716, 895, 1202, 1790, 2404, 3005, 3401, 3580, 6010, 6802, 11419, 12020, 13604, 17005, 22838, 34010, 45676, 57095, 68020, 107579, 114190, 215158, 228380, 430316, 537895, 1075790, 2044001, 2151580, 4088002, 8176004, 10220005, 20440010, 40880020]

約数ペア:

[(1, 40880020), (2, 20440010), (4, 10220005), (5, 8176004), (10, 4088002), (19, 2151580), (20, 2044001), (38, 1075790), (76, 537895), (95, 430316), (179, 228380), (190, 215158), (358, 114190), (380, 107579), (601, 68020), (716, 57095), (895, 45676), (1202, 34010), (1790, 22838), (2404, 17005), (3005, 13604), (3401, 12020), (3580, 11419), (6010, 6802)]