25129305

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 47980800

約数和(自身を除く): 22851495

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 97, 101, 135, 171, 285, 291, 303, 485, 505, 513, 855, 873, 909, 1455, 1515, 1843, 1919, 2565, 2619, 2727, 4365, 4545, 5529, 5757, 9215, 9595, 9797, 13095, 13635, 16587, 17271, 27645, 28785, 29391, 48985, 49761, 51813, 82935, 86355, 88173, 146955, 186143, 248805, 259065, 264519, 440865, 558429, 930715, 1322595, 1675287, 2792145, 5025861, 8376435, 25129305]

約数ペア:

[(1, 25129305), (3, 8376435), (5, 5025861), (9, 2792145), (15, 1675287), (19, 1322595), (27, 930715), (45, 558429), (57, 440865), (95, 264519), (97, 259065), (101, 248805), (135, 186143), (171, 146955), (285, 88173), (291, 86355), (303, 82935), (485, 51813), (505, 49761), (513, 48985), (855, 29391), (873, 28785), (909, 27645), (1455, 17271), (1515, 16587), (1843, 13635), (1919, 13095), (2565, 9797), (2619, 9595), (2727, 9215), (4365, 5757), (4545, 5529)]