28893660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1213}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 81172896

約数和(自身を除く): 52279236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 397, 794, 1191, 1213, 1588, 1985, 2382, 2426, 3639, 3970, 4764, 4852, 5955, 6065, 7278, 7940, 11910, 12130, 14556, 18195, 23820, 24260, 36390, 72780, 481561, 963122, 1444683, 1926244, 2407805, 2889366, 4815610, 5778732, 7223415, 9631220, 14446830, 28893660]

約数ペア:

[(1, 28893660), (2, 14446830), (3, 9631220), (4, 7223415), (5, 5778732), (6, 4815610), (10, 2889366), (12, 2407805), (15, 1926244), (20, 1444683), (30, 963122), (60, 481561), (397, 72780), (794, 36390), (1191, 24260), (1213, 23820), (1588, 18195), (1985, 14556), (2382, 12130), (2426, 11910), (3639, 7940), (3970, 7278), (4764, 6065), (4852, 5955)]