1388173675

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 2137363200

約数和(自身を除く): 749189525

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 191, 245, 349, 425, 595, 833, 955, 1225, 1337, 1745, 2443, 2975, 3247, 4165, 4775, 5933, 6685, 8725, 9359, 12215, 16235, 17101, 20825, 22729, 29665, 33425, 41531, 46795, 61075, 66659, 81175, 85505, 113645, 148325, 159103, 207655, 233975, 290717, 333295, 427525, 466613, 568225, 795515, 1038275, 1133203, 1453585, 1666475, 2333065, 3266291, 3977575, 5666015, 7267925, 7932421, 11665325, 16331455, 28330075, 39662105, 55526947, 81657275, 198310525, 277634735, 1388173675]

約数ペア:

[(1, 1388173675), (5, 277634735), (7, 198310525), (17, 81657275), (25, 55526947), (35, 39662105), (49, 28330075), (85, 16331455), (119, 11665325), (175, 7932421), (191, 7267925), (245, 5666015), (349, 3977575), (425, 3266291), (595, 2333065), (833, 1666475), (955, 1453585), (1225, 1133203), (1337, 1038275), (1745, 795515), (2443, 568225), (2975, 466613), (3247, 427525), (4165, 333295), (4775, 290717), (5933, 233975), (6685, 207655), (8725, 159103), (9359, 148325), (12215, 113645), (16235, 85505), (17101, 81175), (20825, 66659), (22729, 61075), (29665, 46795), (33425, 41531)]