28661625

素因数分解:

$3^2\times 5^3\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 52525200

約数和(自身を除く): 23863575

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 125, 219, 225, 349, 365, 375, 657, 1047, 1095, 1125, 1745, 1825, 3141, 3285, 5235, 5475, 8725, 9125, 15705, 16425, 25477, 26175, 27375, 43625, 76431, 78525, 82125, 127385, 130875, 229293, 382155, 392625, 636925, 1146465, 1910775, 3184625, 5732325, 9553875, 28661625]

約数ペア:

[(1, 28661625), (3, 9553875), (5, 5732325), (9, 3184625), (15, 1910775), (25, 1146465), (45, 636925), (73, 392625), (75, 382155), (125, 229293), (219, 130875), (225, 127385), (349, 82125), (365, 78525), (375, 76431), (657, 43625), (1047, 27375), (1095, 26175), (1125, 25477), (1745, 16425), (1825, 15705), (3141, 9125), (3285, 8725), (5235, 5475)]