28972260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2267}}^1$

素因数の和:2353

約数の個数: 72

約数和(自身を含む): 89159616

約数和(自身を除く): 60187356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2267, 2556, 3195, 4260, 4534, 6390, 6801, 9068, 11335, 12780, 13602, 20403, 22670, 27204, 34005, 40806, 45340, 68010, 81612, 102015, 136020, 160957, 204030, 321914, 408060, 482871, 643828, 804785, 965742, 1448613, 1609570, 1931484, 2414355, 2897226, 3219140, 4828710, 5794452, 7243065, 9657420, 14486130, 28972260]

約数ペア:

[(1, 28972260), (2, 14486130), (3, 9657420), (4, 7243065), (5, 5794452), (6, 4828710), (9, 3219140), (10, 2897226), (12, 2414355), (15, 1931484), (18, 1609570), (20, 1448613), (30, 965742), (36, 804785), (45, 643828), (60, 482871), (71, 408060), (90, 321914), (142, 204030), (180, 160957), (213, 136020), (284, 102015), (355, 81612), (426, 68010), (639, 45340), (710, 40806), (852, 34005), (1065, 27204), (1278, 22670), (1420, 20403), (2130, 13602), (2267, 12780), (2556, 11335), (3195, 9068), (4260, 6801), (4534, 6390)]