156619375

素因数分解:

$5^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 60

約数和(自身を含む): 228520600

約数和(自身を除く): 71901225

約数列:

[1, 5, 11, 19, 25, 55, 95, 109, 121, 125, 209, 275, 475, 545, 605, 625, 1045, 1199, 1375, 2071, 2299, 2375, 2725, 3025, 5225, 5995, 6875, 10355, 11495, 11875, 13189, 13625, 15125, 22781, 26125, 29975, 51775, 57475, 65945, 68125, 75625, 113905, 130625, 149875, 250591, 258875, 287375, 329725, 569525, 749375, 1252955, 1294375, 1436875, 1648625, 2847625, 6264775, 8243125, 14238125, 31323875, 156619375]

約数ペア:

[(1, 156619375), (5, 31323875), (11, 14238125), (19, 8243125), (25, 6264775), (55, 2847625), (95, 1648625), (109, 1436875), (121, 1294375), (125, 1252955), (209, 749375), (275, 569525), (475, 329725), (545, 287375), (605, 258875), (625, 250591), (1045, 149875), (1199, 130625), (1375, 113905), (2071, 75625), (2299, 68125), (2375, 65945), (2725, 57475), (3025, 51775), (5225, 29975), (5995, 26125), (6875, 22781), (10355, 15125), (11495, 13625), (11875, 13189)]