20478672

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{2003}}^1$

素因数の和:2088

約数の個数: 60

約数和(自身を含む): 58148064

約数和(自身を除く): 37669392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 2003, 2556, 3408, 4006, 5112, 6009, 8012, 10224, 12018, 16024, 18027, 24036, 32048, 36054, 48072, 72108, 96144, 142213, 144216, 284426, 288432, 426639, 568852, 853278, 1137704, 1279917, 1706556, 2275408, 2559834, 3413112, 5119668, 6826224, 10239336, 20478672]

約数ペア:

[(1, 20478672), (2, 10239336), (3, 6826224), (4, 5119668), (6, 3413112), (8, 2559834), (9, 2275408), (12, 1706556), (16, 1279917), (18, 1137704), (24, 853278), (36, 568852), (48, 426639), (71, 288432), (72, 284426), (142, 144216), (144, 142213), (213, 96144), (284, 72108), (426, 48072), (568, 36054), (639, 32048), (852, 24036), (1136, 18027), (1278, 16024), (1704, 12018), (2003, 10224), (2556, 8012), (3408, 6009), (4006, 5112)]