77987756

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 180956160

約数和(自身を除く): 102968404

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 101, 109, 154, 161, 202, 218, 253, 308, 322, 404, 436, 506, 644, 707, 763, 1012, 1111, 1199, 1414, 1526, 1771, 2222, 2323, 2398, 2507, 2828, 3052, 3542, 4444, 4646, 4796, 5014, 7084, 7777, 8393, 9292, 10028, 11009, 15554, 16261, 16786, 17549, 22018, 25553, 27577, 31108, 32522, 33572, 35098, 44036, 51106, 55154, 65044, 70196, 77063, 102212, 110308, 121099, 154126, 178871, 193039, 242198, 253207, 308252, 357742, 386078, 484396, 506414, 715484, 772156, 847693, 1012828, 1695386, 1772449, 2785277, 3390772, 3544898, 5570554, 7089796, 11141108, 19496939, 38993878, 77987756]

約数ペア:

[(1, 77987756), (2, 38993878), (4, 19496939), (7, 11141108), (11, 7089796), (14, 5570554), (22, 3544898), (23, 3390772), (28, 2785277), (44, 1772449), (46, 1695386), (77, 1012828), (92, 847693), (101, 772156), (109, 715484), (154, 506414), (161, 484396), (202, 386078), (218, 357742), (253, 308252), (308, 253207), (322, 242198), (404, 193039), (436, 178871), (506, 154126), (644, 121099), (707, 110308), (763, 102212), (1012, 77063), (1111, 70196), (1199, 65044), (1414, 55154), (1526, 51106), (1771, 44036), (2222, 35098), (2323, 33572), (2398, 32522), (2507, 31108), (2828, 27577), (3052, 25553), (3542, 22018), (4444, 17549), (4646, 16786), (4796, 16261), (5014, 15554), (7084, 11009), (7777, 10028), (8393, 9292)]