245890268

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 486062640

約数和(自身を除く): 240172372

約数列:

[1, 2, 4, 13, 26, 52, 61, 67, 89, 122, 134, 169, 178, 244, 268, 338, 356, 676, 793, 871, 1157, 1586, 1742, 2314, 3172, 3484, 4087, 4628, 5429, 5963, 8174, 10309, 10858, 11323, 11926, 15041, 16348, 20618, 21716, 22646, 23852, 30082, 41236, 45292, 53131, 60164, 70577, 77519, 106262, 141154, 155038, 212524, 282308, 310076, 363743, 690703, 727486, 917501, 1007747, 1381406, 1454972, 1835002, 2015494, 2762812, 3670004, 4030988, 4728659, 9457318, 18914636, 61472567, 122945134, 245890268]

約数ペア:

[(1, 245890268), (2, 122945134), (4, 61472567), (13, 18914636), (26, 9457318), (52, 4728659), (61, 4030988), (67, 3670004), (89, 2762812), (122, 2015494), (134, 1835002), (169, 1454972), (178, 1381406), (244, 1007747), (268, 917501), (338, 727486), (356, 690703), (676, 363743), (793, 310076), (871, 282308), (1157, 212524), (1586, 155038), (1742, 141154), (2314, 106262), (3172, 77519), (3484, 70577), (4087, 60164), (4628, 53131), (5429, 45292), (5963, 41236), (8174, 30082), (10309, 23852), (10858, 22646), (11323, 21716), (11926, 20618), (15041, 16348)]