80721830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37199}}^1$

素因数の和:37244

約数の個数: 32

約数和(自身を含む): 171417600

約数和(自身を除く): 90695770

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 37199, 74398, 185995, 260393, 371990, 520786, 1153169, 1301965, 2306338, 2603930, 5765845, 8072183, 11531690, 16144366, 40360915, 80721830]

約数ペア:

[(1, 80721830), (2, 40360915), (5, 16144366), (7, 11531690), (10, 8072183), (14, 5765845), (31, 2603930), (35, 2306338), (62, 1301965), (70, 1153169), (155, 520786), (217, 371990), (310, 260393), (434, 185995), (1085, 74398), (2170, 37199)]