38905515

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 79252992

約数和(自身を除く): 40347477

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 41, 45, 55, 71, 81, 99, 123, 135, 165, 205, 213, 243, 297, 355, 369, 405, 451, 495, 615, 639, 781, 891, 1065, 1107, 1215, 1353, 1485, 1845, 1917, 2255, 2343, 2673, 2911, 3195, 3321, 3905, 4059, 4455, 5535, 5751, 6765, 7029, 8733, 9585, 9963, 11715, 12177, 13365, 14555, 16605, 17253, 20295, 21087, 26199, 28755, 32021, 35145, 36531, 43665, 49815, 60885, 63261, 78597, 86265, 96063, 105435, 109593, 130995, 160105, 182655, 189783, 235791, 288189, 316305, 392985, 480315, 547965, 707373, 864567, 948915, 1178955, 1440945, 2593701, 3536865, 4322835, 7781103, 12968505, 38905515]

約数ペア:

[(1, 38905515), (3, 12968505), (5, 7781103), (9, 4322835), (11, 3536865), (15, 2593701), (27, 1440945), (33, 1178955), (41, 948915), (45, 864567), (55, 707373), (71, 547965), (81, 480315), (99, 392985), (123, 316305), (135, 288189), (165, 235791), (205, 189783), (213, 182655), (243, 160105), (297, 130995), (355, 109593), (369, 105435), (405, 96063), (451, 86265), (495, 78597), (615, 63261), (639, 60885), (781, 49815), (891, 43665), (1065, 36531), (1107, 35145), (1215, 32021), (1353, 28755), (1485, 26199), (1845, 21087), (1917, 20295), (2255, 17253), (2343, 16605), (2673, 14555), (2911, 13365), (3195, 12177), (3321, 11715), (3905, 9963), (4059, 9585), (4455, 8733), (5535, 7029), (5751, 6765)]