39772070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 81285120

約数和(自身を除く): 41513050

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 71, 130, 139, 142, 155, 278, 310, 355, 403, 695, 710, 806, 923, 1390, 1807, 1846, 2015, 2201, 3614, 4030, 4309, 4402, 4615, 8618, 9035, 9230, 9869, 11005, 18070, 19738, 21545, 22010, 28613, 43090, 49345, 56017, 57226, 98690, 112034, 128297, 143065, 256594, 280085, 286130, 305939, 560170, 611878, 641485, 1282970, 1529695, 3059390, 3977207, 7954414, 19886035, 39772070]

約数ペア:

[(1, 39772070), (2, 19886035), (5, 7954414), (10, 3977207), (13, 3059390), (26, 1529695), (31, 1282970), (62, 641485), (65, 611878), (71, 560170), (130, 305939), (139, 286130), (142, 280085), (155, 256594), (278, 143065), (310, 128297), (355, 112034), (403, 98690), (695, 57226), (710, 56017), (806, 49345), (923, 43090), (1390, 28613), (1807, 22010), (1846, 21545), (2015, 19738), (2201, 18070), (3614, 11005), (4030, 9869), (4309, 9230), (4402, 9035), (4615, 8618)]