2226780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 6879600

約数和(自身を除く): 4652820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 139, 178, 180, 267, 278, 356, 417, 445, 534, 556, 695, 801, 834, 890, 1068, 1251, 1335, 1390, 1602, 1668, 1780, 2085, 2502, 2670, 2780, 3204, 4005, 4170, 5004, 5340, 6255, 8010, 8340, 12371, 12510, 16020, 24742, 25020, 37113, 49484, 61855, 74226, 111339, 123710, 148452, 185565, 222678, 247420, 371130, 445356, 556695, 742260, 1113390, 2226780]

約数ペア:

[(1, 2226780), (2, 1113390), (3, 742260), (4, 556695), (5, 445356), (6, 371130), (9, 247420), (10, 222678), (12, 185565), (15, 148452), (18, 123710), (20, 111339), (30, 74226), (36, 61855), (45, 49484), (60, 37113), (89, 25020), (90, 24742), (139, 16020), (178, 12510), (180, 12371), (267, 8340), (278, 8010), (356, 6255), (417, 5340), (445, 5004), (534, 4170), (556, 4005), (695, 3204), (801, 2780), (834, 2670), (890, 2502), (1068, 2085), (1251, 1780), (1335, 1668), (1390, 1602)]