18759420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1171}}^1$

素因数の和:1275

約数の個数: 72

約数和(自身を含む): 57592080

約数和(自身を除く): 38832660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1171, 1335, 1602, 1780, 2342, 2670, 3204, 3513, 4005, 4684, 5340, 5855, 7026, 8010, 10539, 11710, 14052, 16020, 17565, 21078, 23420, 35130, 42156, 52695, 70260, 104219, 105390, 208438, 210780, 312657, 416876, 521095, 625314, 937971, 1042190, 1250628, 1563285, 1875942, 2084380, 3126570, 3751884, 4689855, 6253140, 9379710, 18759420]

約数ペア:

[(1, 18759420), (2, 9379710), (3, 6253140), (4, 4689855), (5, 3751884), (6, 3126570), (9, 2084380), (10, 1875942), (12, 1563285), (15, 1250628), (18, 1042190), (20, 937971), (30, 625314), (36, 521095), (45, 416876), (60, 312657), (89, 210780), (90, 208438), (178, 105390), (180, 104219), (267, 70260), (356, 52695), (445, 42156), (534, 35130), (801, 23420), (890, 21078), (1068, 17565), (1171, 16020), (1335, 14052), (1602, 11710), (1780, 10539), (2342, 8010), (2670, 7026), (3204, 5855), (3513, 5340), (4005, 4684)]