16664805

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 31968000

約数和(自身を除く): 15303195

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 73, 89, 95, 135, 171, 219, 267, 285, 365, 445, 513, 657, 801, 855, 1095, 1335, 1387, 1691, 1971, 2403, 2565, 3285, 4005, 4161, 5073, 6497, 6935, 8455, 9855, 12015, 12483, 15219, 19491, 20805, 25365, 32485, 37449, 45657, 58473, 62415, 76095, 97455, 123443, 175419, 187245, 228285, 292365, 370329, 617215, 877095, 1110987, 1851645, 3332961, 5554935, 16664805]

約数ペア:

[(1, 16664805), (3, 5554935), (5, 3332961), (9, 1851645), (15, 1110987), (19, 877095), (27, 617215), (45, 370329), (57, 292365), (73, 228285), (89, 187245), (95, 175419), (135, 123443), (171, 97455), (219, 76095), (267, 62415), (285, 58473), (365, 45657), (445, 37449), (513, 32485), (657, 25365), (801, 20805), (855, 19491), (1095, 15219), (1335, 12483), (1387, 12015), (1691, 9855), (1971, 8455), (2403, 6935), (2565, 6497), (3285, 5073), (4005, 4161)]