25818520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 73664640

約数和(自身を除く): 47846120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 140, 164, 173, 182, 205, 260, 280, 287, 328, 346, 364, 410, 455, 520, 533, 574, 692, 728, 820, 865, 910, 1066, 1148, 1211, 1384, 1435, 1640, 1730, 1820, 2132, 2249, 2296, 2422, 2665, 2870, 3460, 3640, 3731, 4264, 4498, 4844, 5330, 5740, 6055, 6920, 7093, 7462, 8996, 9688, 10660, 11245, 11480, 12110, 14186, 14924, 15743, 17992, 18655, 21320, 22490, 24220, 28372, 29848, 31486, 35465, 37310, 44980, 48440, 49651, 56744, 62972, 70930, 74620, 78715, 89960, 92209, 99302, 125944, 141860, 149240, 157430, 184418, 198604, 248255, 283720, 314860, 368836, 397208, 461045, 496510, 629720, 645463, 737672, 922090, 993020, 1290926, 1844180, 1986040, 2581852, 3227315, 3688360, 5163704, 6454630, 12909260, 25818520]

約数ペア:

[(1, 25818520), (2, 12909260), (4, 6454630), (5, 5163704), (7, 3688360), (8, 3227315), (10, 2581852), (13, 1986040), (14, 1844180), (20, 1290926), (26, 993020), (28, 922090), (35, 737672), (40, 645463), (41, 629720), (52, 496510), (56, 461045), (65, 397208), (70, 368836), (82, 314860), (91, 283720), (104, 248255), (130, 198604), (140, 184418), (164, 157430), (173, 149240), (182, 141860), (205, 125944), (260, 99302), (280, 92209), (287, 89960), (328, 78715), (346, 74620), (364, 70930), (410, 62972), (455, 56744), (520, 49651), (533, 48440), (574, 44980), (692, 37310), (728, 35465), (820, 31486), (865, 29848), (910, 28372), (1066, 24220), (1148, 22490), (1211, 21320), (1384, 18655), (1435, 17992), (1640, 15743), (1730, 14924), (1820, 14186), (2132, 12110), (2249, 11480), (2296, 11245), (2422, 10660), (2665, 9688), (2870, 8996), (3460, 7462), (3640, 7093), (3731, 6920), (4264, 6055), (4498, 5740), (4844, 5330)]