197894648

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 439128000

約数和(自身を除く): 241233352

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 149, 259, 296, 298, 518, 596, 641, 1036, 1043, 1192, 1282, 2072, 2086, 2564, 4172, 4487, 5128, 5513, 8344, 8974, 11026, 17948, 22052, 23717, 35896, 38591, 44104, 47434, 77182, 94868, 95509, 154364, 166019, 189736, 191018, 308728, 332038, 382036, 664076, 668563, 764072, 1328152, 1337126, 2674252, 3533833, 5348504, 7067666, 14135332, 24736831, 28270664, 49473662, 98947324, 197894648]

約数ペア:

[(1, 197894648), (2, 98947324), (4, 49473662), (7, 28270664), (8, 24736831), (14, 14135332), (28, 7067666), (37, 5348504), (56, 3533833), (74, 2674252), (148, 1337126), (149, 1328152), (259, 764072), (296, 668563), (298, 664076), (518, 382036), (596, 332038), (641, 308728), (1036, 191018), (1043, 189736), (1192, 166019), (1282, 154364), (2072, 95509), (2086, 94868), (2564, 77182), (4172, 47434), (4487, 44104), (5128, 38591), (5513, 35896), (8344, 23717), (8974, 22052), (11026, 17948)]