19439925

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 34640640

約数和(自身を除く): 15200715

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 79, 85, 193, 237, 255, 395, 425, 579, 965, 1185, 1275, 1343, 1975, 2895, 3281, 4029, 4825, 5925, 6715, 9843, 14475, 15247, 16405, 20145, 33575, 45741, 49215, 76235, 82025, 100725, 228705, 246075, 259199, 381175, 777597, 1143525, 1295995, 3887985, 6479975, 19439925]

約数ペア:

[(1, 19439925), (3, 6479975), (5, 3887985), (15, 1295995), (17, 1143525), (25, 777597), (51, 381175), (75, 259199), (79, 246075), (85, 228705), (193, 100725), (237, 82025), (255, 76235), (395, 49215), (425, 45741), (579, 33575), (965, 20145), (1185, 16405), (1275, 15247), (1343, 14475), (1975, 9843), (2895, 6715), (3281, 5925), (4029, 4825)]