20298525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 16365795

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 109, 191, 195, 325, 327, 545, 573, 955, 975, 1417, 1635, 2483, 2725, 2865, 4251, 4775, 7085, 7449, 8175, 12415, 14325, 20819, 21255, 35425, 37245, 62075, 62457, 104095, 106275, 186225, 270647, 312285, 520475, 811941, 1353235, 1561425, 4059705, 6766175, 20298525]

約数ペア:

[(1, 20298525), (3, 6766175), (5, 4059705), (13, 1561425), (15, 1353235), (25, 811941), (39, 520475), (65, 312285), (75, 270647), (109, 186225), (191, 106275), (195, 104095), (325, 62457), (327, 62075), (545, 37245), (573, 35425), (955, 21255), (975, 20819), (1417, 14325), (1635, 12415), (2483, 8175), (2725, 7449), (2865, 7085), (4251, 4775)]