280366268

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:547

約数の個数: 72

約数和(自身を含む): 612420480

約数和(自身を除く): 332054212

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 179, 182, 331, 338, 358, 364, 662, 676, 716, 1183, 1253, 1324, 2317, 2327, 2366, 2506, 4303, 4634, 4654, 4732, 5012, 8606, 9268, 9308, 16289, 17212, 30121, 30251, 32578, 55939, 59249, 60242, 60502, 65156, 111878, 118498, 120484, 121004, 211757, 223756, 236996, 391573, 414743, 423514, 770237, 783146, 829486, 847028, 1540474, 1566292, 1658972, 3080948, 5391659, 10013081, 10783318, 20026162, 21566636, 40052324, 70091567, 140183134, 280366268]

約数ペア:

[(1, 280366268), (2, 140183134), (4, 70091567), (7, 40052324), (13, 21566636), (14, 20026162), (26, 10783318), (28, 10013081), (52, 5391659), (91, 3080948), (169, 1658972), (179, 1566292), (182, 1540474), (331, 847028), (338, 829486), (358, 783146), (364, 770237), (662, 423514), (676, 414743), (716, 391573), (1183, 236996), (1253, 223756), (1324, 211757), (2317, 121004), (2327, 120484), (2366, 118498), (2506, 111878), (4303, 65156), (4634, 60502), (4654, 60242), (4732, 59249), (5012, 55939), (8606, 32578), (9268, 30251), (9308, 30121), (16289, 17212)]