18254288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 41664000

約数和(自身を除く): 23409712

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 38, 52, 62, 76, 104, 124, 149, 152, 208, 247, 248, 298, 304, 403, 494, 496, 589, 596, 806, 988, 1178, 1192, 1612, 1937, 1976, 2356, 2384, 2831, 3224, 3874, 3952, 4619, 4712, 5662, 6448, 7657, 7748, 9238, 9424, 11324, 15314, 15496, 18476, 22648, 30628, 30992, 36803, 36952, 45296, 60047, 61256, 73606, 73904, 87761, 120094, 122512, 147212, 175522, 240188, 294424, 351044, 480376, 588848, 702088, 960752, 1140893, 1404176, 2281786, 4563572, 9127144, 18254288]

約数ペア:

[(1, 18254288), (2, 9127144), (4, 4563572), (8, 2281786), (13, 1404176), (16, 1140893), (19, 960752), (26, 702088), (31, 588848), (38, 480376), (52, 351044), (62, 294424), (76, 240188), (104, 175522), (124, 147212), (149, 122512), (152, 120094), (208, 87761), (247, 73904), (248, 73606), (298, 61256), (304, 60047), (403, 45296), (494, 36952), (496, 36803), (589, 30992), (596, 30628), (806, 22648), (988, 18476), (1178, 15496), (1192, 15314), (1612, 11324), (1937, 9424), (1976, 9238), (2356, 7748), (2384, 7657), (2831, 6448), (3224, 5662), (3874, 4712), (3952, 4619)]