139478920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16069}}^1$

素因数の和:16118

約数の個数: 64

約数和(自身を含む): 370252800

約数和(自身を除く): 230773880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 16069, 32138, 64276, 80345, 112483, 128552, 160690, 224966, 321380, 449932, 498139, 562415, 642760, 899864, 996278, 1124830, 1992556, 2249660, 2490695, 3486973, 3985112, 4499320, 4981390, 6973946, 9962780, 13947892, 17434865, 19925560, 27895784, 34869730, 69739460, 139478920]

約数ペア:

[(1, 139478920), (2, 69739460), (4, 34869730), (5, 27895784), (7, 19925560), (8, 17434865), (10, 13947892), (14, 9962780), (20, 6973946), (28, 4981390), (31, 4499320), (35, 3985112), (40, 3486973), (56, 2490695), (62, 2249660), (70, 1992556), (124, 1124830), (140, 996278), (155, 899864), (217, 642760), (248, 562415), (280, 498139), (310, 449932), (434, 321380), (620, 224966), (868, 160690), (1085, 128552), (1240, 112483), (1736, 80345), (2170, 64276), (4340, 32138), (8680, 16069)]