128194900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{619}}^1$

素因数の和:761

約数の個数: 72

約数和(自身を含む): 295988000

約数和(自身を除く): 167793100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 109, 190, 218, 380, 436, 475, 545, 619, 950, 1090, 1238, 1900, 2071, 2180, 2476, 2725, 3095, 4142, 5450, 6190, 8284, 10355, 10900, 11761, 12380, 15475, 20710, 23522, 30950, 41420, 47044, 51775, 58805, 61900, 67471, 103550, 117610, 134942, 207100, 235220, 269884, 294025, 337355, 588050, 674710, 1176100, 1281949, 1349420, 1686775, 2563898, 3373550, 5127796, 6409745, 6747100, 12819490, 25638980, 32048725, 64097450, 128194900]

約数ペア:

[(1, 128194900), (2, 64097450), (4, 32048725), (5, 25638980), (10, 12819490), (19, 6747100), (20, 6409745), (25, 5127796), (38, 3373550), (50, 2563898), (76, 1686775), (95, 1349420), (100, 1281949), (109, 1176100), (190, 674710), (218, 588050), (380, 337355), (436, 294025), (475, 269884), (545, 235220), (619, 207100), (950, 134942), (1090, 117610), (1238, 103550), (1900, 67471), (2071, 61900), (2180, 58805), (2476, 51775), (2725, 47044), (3095, 41420), (4142, 30950), (5450, 23522), (6190, 20710), (8284, 15475), (10355, 12380), (10900, 11761)]