28738788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 74769408

約数和(自身を除く): 46030620

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 111, 148, 156, 169, 222, 338, 383, 444, 481, 507, 676, 766, 962, 1014, 1149, 1443, 1532, 1924, 2028, 2298, 2886, 4596, 4979, 5772, 6253, 9958, 12506, 14171, 14937, 18759, 19916, 25012, 28342, 29874, 37518, 42513, 56684, 59748, 64727, 75036, 85026, 129454, 170052, 184223, 194181, 258908, 368446, 388362, 552669, 736892, 776724, 1105338, 2210676, 2394899, 4789798, 7184697, 9579596, 14369394, 28738788]

約数ペア:

[(1, 28738788), (2, 14369394), (3, 9579596), (4, 7184697), (6, 4789798), (12, 2394899), (13, 2210676), (26, 1105338), (37, 776724), (39, 736892), (52, 552669), (74, 388362), (78, 368446), (111, 258908), (148, 194181), (156, 184223), (169, 170052), (222, 129454), (338, 85026), (383, 75036), (444, 64727), (481, 59748), (507, 56684), (676, 42513), (766, 37518), (962, 29874), (1014, 28342), (1149, 25012), (1443, 19916), (1532, 18759), (1924, 14937), (2028, 14171), (2298, 12506), (2886, 9958), (4596, 6253), (4979, 5772)]