881879440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13901}}^1$

素因数の和:13988

約数の個数: 80

約数和(自身を含む): 2244450096

約数和(自身を除く): 1362570656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1586, 2440, 3172, 3965, 4880, 6344, 7930, 12688, 13901, 15860, 27802, 31720, 55604, 63440, 69505, 111208, 139010, 180713, 222416, 278020, 361426, 556040, 722852, 847961, 903565, 1112080, 1445704, 1695922, 1807130, 2891408, 3391844, 3614260, 4239805, 6783688, 7228520, 8479610, 11023493, 13567376, 14457040, 16959220, 22046986, 33918440, 44093972, 55117465, 67836880, 88187944, 110234930, 176375888, 220469860, 440939720, 881879440]

約数ペア:

[(1, 881879440), (2, 440939720), (4, 220469860), (5, 176375888), (8, 110234930), (10, 88187944), (13, 67836880), (16, 55117465), (20, 44093972), (26, 33918440), (40, 22046986), (52, 16959220), (61, 14457040), (65, 13567376), (80, 11023493), (104, 8479610), (122, 7228520), (130, 6783688), (208, 4239805), (244, 3614260), (260, 3391844), (305, 2891408), (488, 1807130), (520, 1695922), (610, 1445704), (793, 1112080), (976, 903565), (1040, 847961), (1220, 722852), (1586, 556040), (2440, 361426), (3172, 278020), (3965, 222416), (4880, 180713), (6344, 139010), (7930, 111208), (12688, 69505), (13901, 63440), (15860, 55604), (27802, 31720)]