16642920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19813}}^1$

素因数の和:19834

約数の個数: 64

約数和(自身を含む): 57064320

約数和(自身を除く): 40421400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 19813, 39626, 59439, 79252, 99065, 118878, 138691, 158504, 198130, 237756, 277382, 297195, 396260, 416073, 475512, 554764, 594390, 693455, 792520, 832146, 1109528, 1188780, 1386910, 1664292, 2080365, 2377560, 2773820, 3328584, 4160730, 5547640, 8321460, 16642920]

約数ペア:

[(1, 16642920), (2, 8321460), (3, 5547640), (4, 4160730), (5, 3328584), (6, 2773820), (7, 2377560), (8, 2080365), (10, 1664292), (12, 1386910), (14, 1188780), (15, 1109528), (20, 832146), (21, 792520), (24, 693455), (28, 594390), (30, 554764), (35, 475512), (40, 416073), (42, 396260), (56, 297195), (60, 277382), (70, 237756), (84, 198130), (105, 158504), (120, 138691), (140, 118878), (168, 99065), (210, 79252), (280, 59439), (420, 39626), (840, 19813)]