28789072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2269}}^1$

素因数の和:2351

約数の個数: 40

約数和(自身を含む): 61081160

約数和(自身を除く): 32292088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 2269, 3172, 4538, 6344, 9076, 12688, 18152, 29497, 36304, 58994, 117988, 138409, 235976, 276818, 471952, 553636, 1107272, 1799317, 2214544, 3598634, 7197268, 14394536, 28789072]

約数ペア:

[(1, 28789072), (2, 14394536), (4, 7197268), (8, 3598634), (13, 2214544), (16, 1799317), (26, 1107272), (52, 553636), (61, 471952), (104, 276818), (122, 235976), (208, 138409), (244, 117988), (488, 58994), (793, 36304), (976, 29497), (1586, 18152), (2269, 12688), (3172, 9076), (4538, 6344)]