128407160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 349470720

約数和(自身を除く): 221063560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 127, 140, 157, 161, 184, 230, 254, 280, 314, 322, 460, 508, 628, 635, 644, 785, 805, 889, 920, 1016, 1099, 1256, 1270, 1288, 1570, 1610, 1778, 2198, 2540, 2921, 3140, 3220, 3556, 3611, 4396, 4445, 5080, 5495, 5842, 6280, 6440, 7112, 7222, 8792, 8890, 10990, 11684, 14444, 14605, 17780, 18055, 19939, 20447, 21980, 23368, 25277, 28888, 29210, 35560, 36110, 39878, 40894, 43960, 50554, 58420, 72220, 79756, 81788, 99695, 101108, 102235, 116840, 126385, 139573, 144440, 159512, 163576, 199390, 202216, 204470, 252770, 279146, 398780, 408940, 458597, 505540, 558292, 697865, 797560, 817880, 917194, 1011080, 1116584, 1395730, 1834388, 2292985, 2791460, 3210179, 3668776, 4585970, 5582920, 6420358, 9171940, 12840716, 16050895, 18343880, 25681432, 32101790, 64203580, 128407160]

約数ペア:

[(1, 128407160), (2, 64203580), (4, 32101790), (5, 25681432), (7, 18343880), (8, 16050895), (10, 12840716), (14, 9171940), (20, 6420358), (23, 5582920), (28, 4585970), (35, 3668776), (40, 3210179), (46, 2791460), (56, 2292985), (70, 1834388), (92, 1395730), (115, 1116584), (127, 1011080), (140, 917194), (157, 817880), (161, 797560), (184, 697865), (230, 558292), (254, 505540), (280, 458597), (314, 408940), (322, 398780), (460, 279146), (508, 252770), (628, 204470), (635, 202216), (644, 199390), (785, 163576), (805, 159512), (889, 144440), (920, 139573), (1016, 126385), (1099, 116840), (1256, 102235), (1270, 101108), (1288, 99695), (1570, 81788), (1610, 79756), (1778, 72220), (2198, 58420), (2540, 50554), (2921, 43960), (3140, 40894), (3220, 39878), (3556, 36110), (3611, 35560), (4396, 29210), (4445, 28888), (5080, 25277), (5495, 23368), (5842, 21980), (6280, 20447), (6440, 19939), (7112, 18055), (7222, 17780), (8792, 14605), (8890, 14444), (10990, 11684)]