257070836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^2$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 532570080

約数和(自身を除く): 275499244

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 61, 71, 76, 122, 142, 209, 244, 284, 418, 671, 781, 836, 1159, 1342, 1349, 1562, 2318, 2684, 2698, 3124, 4331, 4636, 5041, 5396, 8662, 10082, 12749, 14839, 17324, 20164, 25498, 29678, 47641, 50996, 55451, 59356, 82289, 95282, 95779, 110902, 164578, 190564, 191558, 221804, 307501, 329156, 383116, 615002, 905179, 1053569, 1230004, 1810358, 2107138, 3382511, 3620716, 4214276, 5842519, 6765022, 11685038, 13530044, 23370076, 64267709, 128535418, 257070836]

約数ペア:

[(1, 257070836), (2, 128535418), (4, 64267709), (11, 23370076), (19, 13530044), (22, 11685038), (38, 6765022), (44, 5842519), (61, 4214276), (71, 3620716), (76, 3382511), (122, 2107138), (142, 1810358), (209, 1230004), (244, 1053569), (284, 905179), (418, 615002), (671, 383116), (781, 329156), (836, 307501), (1159, 221804), (1342, 191558), (1349, 190564), (1562, 164578), (2318, 110902), (2684, 95779), (2698, 95282), (3124, 82289), (4331, 59356), (4636, 55451), (5041, 50996), (5396, 47641), (8662, 29678), (10082, 25498), (12749, 20164), (14839, 17324)]