81301950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:331

約数の個数: 144

約数和(自身を含む): 237060720

約数和(自身を除く): 155758770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 37, 38, 45, 50, 57, 74, 75, 90, 95, 111, 114, 150, 171, 185, 190, 222, 225, 257, 285, 333, 342, 370, 450, 475, 514, 555, 570, 666, 703, 771, 855, 925, 950, 1110, 1285, 1406, 1425, 1542, 1665, 1710, 1850, 2109, 2313, 2570, 2775, 2850, 3330, 3515, 3855, 4218, 4275, 4626, 4883, 5550, 6327, 6425, 7030, 7710, 8325, 8550, 9509, 9766, 10545, 11565, 12654, 12850, 14649, 16650, 17575, 19018, 19275, 21090, 23130, 24415, 28527, 29298, 31635, 35150, 38550, 43947, 47545, 48830, 52725, 57054, 57825, 63270, 73245, 85581, 87894, 95090, 105450, 115650, 122075, 142635, 146490, 158175, 171162, 180671, 219735, 237725, 244150, 285270, 316350, 361342, 366225, 427905, 439470, 475450, 542013, 713175, 732450, 855810, 903355, 1084026, 1098675, 1426350, 1626039, 1806710, 2139525, 2197350, 2710065, 3252078, 4279050, 4516775, 5420130, 8130195, 9033550, 13550325, 16260390, 27100650, 40650975, 81301950]

約数ペア:

[(1, 81301950), (2, 40650975), (3, 27100650), (5, 16260390), (6, 13550325), (9, 9033550), (10, 8130195), (15, 5420130), (18, 4516775), (19, 4279050), (25, 3252078), (30, 2710065), (37, 2197350), (38, 2139525), (45, 1806710), (50, 1626039), (57, 1426350), (74, 1098675), (75, 1084026), (90, 903355), (95, 855810), (111, 732450), (114, 713175), (150, 542013), (171, 475450), (185, 439470), (190, 427905), (222, 366225), (225, 361342), (257, 316350), (285, 285270), (333, 244150), (342, 237725), (370, 219735), (450, 180671), (475, 171162), (514, 158175), (555, 146490), (570, 142635), (666, 122075), (703, 115650), (771, 105450), (855, 95090), (925, 87894), (950, 85581), (1110, 73245), (1285, 63270), (1406, 57825), (1425, 57054), (1542, 52725), (1665, 48830), (1710, 47545), (1850, 43947), (2109, 38550), (2313, 35150), (2570, 31635), (2775, 29298), (2850, 28527), (3330, 24415), (3515, 23130), (3855, 21090), (4218, 19275), (4275, 19018), (4626, 17575), (4883, 16650), (5550, 14649), (6327, 12850), (6425, 12654), (7030, 11565), (7710, 10545), (8325, 9766), (8550, 9509)]