18750342

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 42517440

約数和(自身を除く): 23767098

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 73, 74, 78, 89, 111, 146, 178, 219, 222, 267, 438, 481, 534, 949, 962, 1157, 1443, 1898, 2314, 2701, 2847, 2886, 3293, 3471, 5402, 5694, 6497, 6586, 6942, 8103, 9879, 12994, 16206, 19491, 19758, 35113, 38982, 42809, 70226, 84461, 85618, 105339, 128427, 168922, 210678, 240389, 253383, 256854, 480778, 506766, 721167, 1442334, 3125057, 6250114, 9375171, 18750342]

約数ペア:

[(1, 18750342), (2, 9375171), (3, 6250114), (6, 3125057), (13, 1442334), (26, 721167), (37, 506766), (39, 480778), (73, 256854), (74, 253383), (78, 240389), (89, 210678), (111, 168922), (146, 128427), (178, 105339), (219, 85618), (222, 84461), (267, 70226), (438, 42809), (481, 38982), (534, 35113), (949, 19758), (962, 19491), (1157, 16206), (1443, 12994), (1898, 9879), (2314, 8103), (2701, 6942), (2847, 6586), (2886, 6497), (3293, 5694), (3471, 5402)]