72795440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 176774400

約数和(自身を除く): 103978960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 149, 155, 197, 248, 298, 310, 394, 496, 596, 620, 745, 788, 985, 1192, 1240, 1490, 1576, 1970, 2384, 2480, 2980, 3152, 3940, 4619, 5960, 6107, 7880, 9238, 11920, 12214, 15760, 18476, 23095, 24428, 29353, 30535, 36952, 46190, 48856, 58706, 61070, 73904, 92380, 97712, 117412, 122140, 146765, 184760, 234824, 244280, 293530, 369520, 469648, 488560, 587060, 909943, 1174120, 1819886, 2348240, 3639772, 4549715, 7279544, 9099430, 14559088, 18198860, 36397720, 72795440]

約数ペア:

[(1, 72795440), (2, 36397720), (4, 18198860), (5, 14559088), (8, 9099430), (10, 7279544), (16, 4549715), (20, 3639772), (31, 2348240), (40, 1819886), (62, 1174120), (80, 909943), (124, 587060), (149, 488560), (155, 469648), (197, 369520), (248, 293530), (298, 244280), (310, 234824), (394, 184760), (496, 146765), (596, 122140), (620, 117412), (745, 97712), (788, 92380), (985, 73904), (1192, 61070), (1240, 58706), (1490, 48856), (1576, 46190), (1970, 36952), (2384, 30535), (2480, 29353), (2980, 24428), (3152, 23095), (3940, 18476), (4619, 15760), (5960, 12214), (6107, 11920), (7880, 9238)]