28103796

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{487}}^1$

素因数の和:733

約数の個数: 72

約数和(自身を含む): 81710720

約数和(自身を除く): 53606924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 229, 252, 458, 487, 687, 916, 974, 1374, 1461, 1603, 1948, 2061, 2748, 2922, 3206, 3409, 4122, 4383, 4809, 5844, 6412, 6818, 8244, 8766, 9618, 10227, 13636, 14427, 17532, 19236, 20454, 28854, 30681, 40908, 57708, 61362, 111523, 122724, 223046, 334569, 446092, 669138, 780661, 1003707, 1338276, 1561322, 2007414, 2341983, 3122644, 4014828, 4683966, 7025949, 9367932, 14051898, 28103796]

約数ペア:

[(1, 28103796), (2, 14051898), (3, 9367932), (4, 7025949), (6, 4683966), (7, 4014828), (9, 3122644), (12, 2341983), (14, 2007414), (18, 1561322), (21, 1338276), (28, 1003707), (36, 780661), (42, 669138), (63, 446092), (84, 334569), (126, 223046), (229, 122724), (252, 111523), (458, 61362), (487, 57708), (687, 40908), (916, 30681), (974, 28854), (1374, 20454), (1461, 19236), (1603, 17532), (1948, 14427), (2061, 13636), (2748, 10227), (2922, 9618), (3206, 8766), (3409, 8244), (4122, 6818), (4383, 6412), (4809, 5844)]