28349900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 66454080

約数和(自身を除く): 38104180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 172, 190, 215, 347, 380, 430, 475, 694, 817, 860, 950, 1075, 1388, 1634, 1735, 1900, 2150, 3268, 3470, 4085, 4300, 6593, 6940, 8170, 8675, 13186, 14921, 16340, 17350, 20425, 26372, 29842, 32965, 34700, 40850, 59684, 65930, 74605, 81700, 131860, 149210, 164825, 283499, 298420, 329650, 373025, 566998, 659300, 746050, 1133996, 1417495, 1492100, 2834990, 5669980, 7087475, 14174950, 28349900]

約数ペア:

[(1, 28349900), (2, 14174950), (4, 7087475), (5, 5669980), (10, 2834990), (19, 1492100), (20, 1417495), (25, 1133996), (38, 746050), (43, 659300), (50, 566998), (76, 373025), (86, 329650), (95, 298420), (100, 283499), (172, 164825), (190, 149210), (215, 131860), (347, 81700), (380, 74605), (430, 65930), (475, 59684), (694, 40850), (817, 34700), (860, 32965), (950, 29842), (1075, 26372), (1388, 20425), (1634, 17350), (1735, 16340), (1900, 14921), (2150, 13186), (3268, 8675), (3470, 8170), (4085, 6940), (4300, 6593)]