211907625

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 373800960

約数和(自身を除く): 161893335

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 79, 115, 125, 237, 311, 345, 375, 395, 575, 933, 1185, 1555, 1725, 1817, 1975, 2875, 4665, 5451, 5925, 7153, 7775, 8625, 9085, 9875, 21459, 23325, 24569, 27255, 29625, 35765, 38875, 45425, 73707, 107295, 116625, 122845, 136275, 178825, 227125, 368535, 536475, 565087, 614225, 681375, 894125, 1695261, 1842675, 2682375, 2825435, 3071125, 8476305, 9213375, 14127175, 42381525, 70635875, 211907625]

約数ペア:

[(1, 211907625), (3, 70635875), (5, 42381525), (15, 14127175), (23, 9213375), (25, 8476305), (69, 3071125), (75, 2825435), (79, 2682375), (115, 1842675), (125, 1695261), (237, 894125), (311, 681375), (345, 614225), (375, 565087), (395, 536475), (575, 368535), (933, 227125), (1185, 178825), (1555, 136275), (1725, 122845), (1817, 116625), (1975, 107295), (2875, 73707), (4665, 45425), (5451, 38875), (5925, 35765), (7153, 29625), (7775, 27255), (8625, 24569), (9085, 23325), (9875, 21459)]