128699700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{1019}}^1$

素因数の和:1457

約数の個数: 72

約数和(自身を含む): 373621920

約数和(自身を除く): 244922220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 421, 842, 1019, 1263, 1684, 2038, 2105, 2526, 3057, 4076, 4210, 5052, 5095, 6114, 6315, 8420, 10190, 10525, 12228, 12630, 15285, 20380, 21050, 25260, 25475, 30570, 31575, 42100, 50950, 61140, 63150, 76425, 101900, 126300, 152850, 305700, 428999, 857998, 1286997, 1715996, 2144995, 2573994, 4289990, 5147988, 6434985, 8579980, 10724975, 12869970, 21449950, 25739940, 32174925, 42899900, 64349850, 128699700]

約数ペア:

[(1, 128699700), (2, 64349850), (3, 42899900), (4, 32174925), (5, 25739940), (6, 21449950), (10, 12869970), (12, 10724975), (15, 8579980), (20, 6434985), (25, 5147988), (30, 4289990), (50, 2573994), (60, 2144995), (75, 1715996), (100, 1286997), (150, 857998), (300, 428999), (421, 305700), (842, 152850), (1019, 126300), (1263, 101900), (1684, 76425), (2038, 63150), (2105, 61140), (2526, 50950), (3057, 42100), (4076, 31575), (4210, 30570), (5052, 25475), (5095, 25260), (6114, 21050), (6315, 20380), (8420, 15285), (10190, 12630), (10525, 12228)]