28398900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{523}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 82779424

約数和(自身を除く): 54380524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 181, 300, 362, 523, 543, 724, 905, 1046, 1086, 1569, 1810, 2092, 2172, 2615, 2715, 3138, 3620, 4525, 5230, 5430, 6276, 7845, 9050, 10460, 10860, 13075, 13575, 15690, 18100, 26150, 27150, 31380, 39225, 52300, 54300, 78450, 94663, 156900, 189326, 283989, 378652, 473315, 567978, 946630, 1135956, 1419945, 1893260, 2366575, 2839890, 4733150, 5679780, 7099725, 9466300, 14199450, 28398900]

約数ペア:

[(1, 28398900), (2, 14199450), (3, 9466300), (4, 7099725), (5, 5679780), (6, 4733150), (10, 2839890), (12, 2366575), (15, 1893260), (20, 1419945), (25, 1135956), (30, 946630), (50, 567978), (60, 473315), (75, 378652), (100, 283989), (150, 189326), (181, 156900), (300, 94663), (362, 78450), (523, 54300), (543, 52300), (724, 39225), (905, 31380), (1046, 27150), (1086, 26150), (1569, 18100), (1810, 15690), (2092, 13575), (2172, 13075), (2615, 10860), (2715, 10460), (3138, 9050), (3620, 7845), (4525, 6276), (5230, 5430)]