31919460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^2$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 92967168

約数和(自身を除く): 61047708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 131, 155, 186, 262, 310, 372, 393, 465, 524, 620, 655, 786, 930, 1310, 1572, 1860, 1965, 2620, 3930, 4061, 7860, 8122, 12183, 16244, 17161, 20305, 24366, 34322, 40610, 48732, 51483, 60915, 68644, 81220, 85805, 102966, 121830, 171610, 205932, 243660, 257415, 343220, 514830, 531991, 1029660, 1063982, 1595973, 2127964, 2659955, 3191946, 5319910, 6383892, 7979865, 10639820, 15959730, 31919460]

約数ペア:

[(1, 31919460), (2, 15959730), (3, 10639820), (4, 7979865), (5, 6383892), (6, 5319910), (10, 3191946), (12, 2659955), (15, 2127964), (20, 1595973), (30, 1063982), (31, 1029660), (60, 531991), (62, 514830), (93, 343220), (124, 257415), (131, 243660), (155, 205932), (186, 171610), (262, 121830), (310, 102966), (372, 85805), (393, 81220), (465, 68644), (524, 60915), (620, 51483), (655, 48732), (786, 40610), (930, 34322), (1310, 24366), (1572, 20305), (1860, 17161), (1965, 16244), (2620, 12183), (3930, 8122), (4061, 7860)]