38415975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 72401616

約数和(自身を除く): 33985641

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 41, 65, 75, 93, 123, 155, 195, 205, 325, 403, 465, 533, 615, 775, 961, 975, 1025, 1209, 1271, 1599, 2015, 2325, 2665, 2883, 3075, 3813, 4805, 6045, 6355, 7995, 10075, 12493, 13325, 14415, 16523, 19065, 24025, 30225, 31775, 37479, 39401, 39975, 49569, 62465, 72075, 82615, 95325, 118203, 187395, 197005, 247845, 312325, 413075, 512213, 591015, 936975, 985025, 1239225, 1536639, 2561065, 2955075, 7683195, 12805325, 38415975]

約数ペア:

[(1, 38415975), (3, 12805325), (5, 7683195), (13, 2955075), (15, 2561065), (25, 1536639), (31, 1239225), (39, 985025), (41, 936975), (65, 591015), (75, 512213), (93, 413075), (123, 312325), (155, 247845), (195, 197005), (205, 187395), (325, 118203), (403, 95325), (465, 82615), (533, 72075), (615, 62465), (775, 49569), (961, 39975), (975, 39401), (1025, 37479), (1209, 31775), (1271, 30225), (1599, 24025), (2015, 19065), (2325, 16523), (2665, 14415), (2883, 13325), (3075, 12493), (3813, 10075), (4805, 7995), (6045, 6355)]